<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"><channel><title><![CDATA[Not-So-Guru Playbook: Mental Mastery]]></title><description><![CDATA[Master your mindset to thrive in every situation. This section focuses on staying composed under pressure, turning obstacles into opportunities, and cultivating inner peace in a chaotic world. With practical tools for resilience and mindfulness—delivered with a dose of humor—Mental Mastery is all about helping you build mental strength for success.]]></description><link>https://www.not-so-guru.com/s/mental-mastery</link><image><url>https://substackcdn.com/image/fetch/$s_!8hz2!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F48bd6461-5645-49aa-80b0-ec59e5c73944_1024x1024.png</url><title>Not-So-Guru Playbook: Mental Mastery</title><link>https://www.not-so-guru.com/s/mental-mastery</link></image><generator>Substack</generator><lastBuildDate>Thu, 16 Jul 2026 03:15:49 GMT</lastBuildDate><atom:link href="https://www.not-so-guru.com/feed" rel="self" type="application/rss+xml"/><copyright><![CDATA[The Not-So-Guru. All Rights Reserved.]]></copyright><language><![CDATA[en]]></language><webMaster><![CDATA[notsoguru@substack.com]]></webMaster><itunes:owner><itunes:email><![CDATA[notsoguru@substack.com]]></itunes:email><itunes:name><![CDATA[Hillman Lentz]]></itunes:name></itunes:owner><itunes:author><![CDATA[Hillman Lentz]]></itunes:author><googleplay:owner><![CDATA[notsoguru@substack.com]]></googleplay:owner><googleplay:email><![CDATA[notsoguru@substack.com]]></googleplay:email><googleplay:author><![CDATA[Hillman Lentz]]></googleplay:author><itunes:block><![CDATA[Yes]]></itunes:block><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[The Space Between Trigger & Response]]></description><link>https://www.not-so-guru.com/p/mental-mastery-f2b</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-f2b</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 09 Jul 2026 10:02:35 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/ae37f153-11fd-4126-a581-16d1bfad8eb1_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>There&#8217;s a small gap between what happens to you and how you respond. Most people don&#8217;t even realize it exists. They react instantly&#8212;emotion first, thought second. That gap? That&#8217;s where control lives.</p><p>Early on, I didn&#8217;t have that gap. Something happened, I reacted. Email, message, conversation&#8212;it didn&#8217;t matter. Immediate response. I thought that made me sharp. In reality, it made me reactive and inconsistent.</p><p>Building that space takes practice. It&#8217;s not natural at first. You have to catch yourself mid-reaction and pause. Sometimes that means saying nothing. Sometimes it means stepping away for a few minutes. Either way, you&#8217;re buying yourself time to think.</p><p>The goal isn&#8217;t to suppress emotion. It&#8217;s to separate emotion from decision-making. You can feel frustration, pressure, even anger&#8212;but you don&#8217;t have to act on it. That&#8217;s the difference between discipline and impulse.</p><p>Once you develop that space, everything changes. Your decisions improve. Your communication sharpens. And you stop creating unnecessary problems that come from reacting instead of thinking.</p><p><strong>The Takeaway</strong></p><p>Master the pause, and you&#8217;ll master your responses.</p><p><strong>Keep Moving Forward!</strong></p><p><em>Not-So-Guru</em></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://www.not-so-guru.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Not-So-Guru Playbook is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://www.not-so-guru.com/?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share Not-So-Guru Playbook&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="https://www.not-so-guru.com/?utm_source=substack&utm_medium=email&utm_content=share&action=share"><span>Share Not-So-Guru Playbook</span></a></p><p></p>]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Decisiveness Is a Skill]]></description><link>https://www.not-so-guru.com/p/mental-mastery-fde</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-fde</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 02 Jul 2026 10:00:28 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/c4f85aba-8c68-49ef-968d-34cbbf51dc15_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Some people think decisiveness is a personality trait&#8212;you either have it or you don&#8217;t. That&#8217;s not true. It&#8217;s a skill, and like any skill, it&#8217;s built through repetition.</p><p>The more you decide, the better you get at deciding. The less you hesitate, the less hesitation becomes part of your process.</p><p>What slows people down is fear&#8212;fear of being wrong, fear of consequences, fear of judgment. So they delay. And in that delay, they lose momentum.</p><p>Strong minds don&#8217;t eliminate fear&#8212;they move with it. They understand that action reduces uncertainty faster than thinking ever will.</p><p>Make decisions faster. Not recklessly&#8212;but without unnecessary delay. That&#8217;s how you build confidence in your own judgment.</p><p><strong>The Takeaway</strong></p><p>Decisiveness improves with action.</p><p><strong>Keep Moving Forward!</strong></p><p><em>Not-So-Guru</em></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://www.not-so-guru.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Not-So-Guru Playbook is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://www.not-so-guru.com/?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share Not-So-Guru Playbook&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="https://www.not-so-guru.com/?utm_source=substack&utm_medium=email&utm_content=share&action=share"><span>Share Not-So-Guru Playbook</span></a></p><p></p>]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Detach From the Original Plan]]></description><link>https://www.not-so-guru.com/p/mental-mastery-204</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-204</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 25 Jun 2026 10:01:27 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/62ffd743-33fb-4962-93e0-c7c2f4b1903d_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>One of the biggest mental traps is attachment&#8212;to your original plan, your first idea, your initial decision.</p><p>You convince yourself that because you chose it, it must be right. And when reality starts to show otherwise, you resist adjusting.</p><p>That resistance creates friction. You hold onto something that no longer serves you, simply because you committed to&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Responsibility Removes Noise]]></description><link>https://www.not-so-guru.com/p/mental-mastery-126</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-126</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 18 Jun 2026 10:01:36 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/243750ff-59f8-44cd-a5cd-783af9ad4d38_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Mental clutter often comes from one place&#8212;avoidance. Avoidance of responsibility, avoidance of decisions, avoidance of outcomes.</p><p>When you don&#8217;t fully own something, your mind keeps revisiting it. Second-guessing, replaying, questioning. That loop creates noise.</p><p>Responsibility cuts through that instantly. When you accept, &#8220;This is mine,&#8221; the loop closes. Y&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Stop Negotiating With Yourself]]></description><link>https://www.not-so-guru.com/p/mental-mastery-d6e</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-d6e</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 11 Jun 2026 10:01:31 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/ee06c8ef-945e-4894-8a03-0e5fc7797b56_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people lose their mental edge not because they lack strength&#8212;but because they keep negotiating with themselves.</p><p>&#8220;I&#8217;ll do it later.&#8221;<br>&#8220;Maybe I&#8217;ll adjust this.&#8221;<br>&#8220;Let me think about it again.&#8221;</p><p>That internal dialogue drains you. Every time you revisit a decision, you reopen the loop. And the more loops you have open, the weaker your focus becomes.</p><p>Strong min&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Discipline Is Choosing Less, Not More]]></description><link>https://www.not-so-guru.com/p/mental-mastery-ba4</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-ba4</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 04 Jun 2026 10:01:27 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/08b39c8d-bb24-46fb-b627-8fb2dc0712b6_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people think discipline is about doing more. More effort, more control, more pushing. That&#8217;s not discipline&#8212;that&#8217;s burnout waiting to happen.</p><p>Real discipline is about elimination. It&#8217;s about removing distractions, cutting options, and deciding what doesn&#8217;t matter. That&#8217;s where mental strength actually shows up.</p><p>When you limit your choices, you reduce&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Zoom Out & Stay Steady]]></description><link>https://www.not-so-guru.com/p/mental-mastery-1fd</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-1fd</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 28 May 2026 10:01:41 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/9bbb4d8e-0475-4d2f-8e4c-c49852baa675_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>When you&#8217;re too close to the day-to-day, everything feels urgent. Every setback feels bigger than it is.</p><p>I used to get caught in that loop. Reacting to small things like they were major problems. It drains energy fast.</p><p>The solution is perspective. Zoom out. Look at the bigger picture. Most of what feels urgent isn&#8217;t important long-term.</p><p>When you operate fr&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Detach from Immediate Results]]></description><link>https://www.not-so-guru.com/p/mental-mastery-f70</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-f70</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 21 May 2026 10:01:42 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/1d2fc00e-cb6d-4908-b238-9788f48a5413_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>The fastest way to lose focus is to obsess over short-term results. Checking constantly. Measuring everything too early.</p><p>I used to do this daily. &#8220;Is it working yet?&#8221; It creates pressure, frustration, and doubt&#8212;all at the wrong time.</p><p>You don&#8217;t control outcomes&#8212;you control actions. When you shift your focus there, things get a lot clearer.</p><p>The work becomes &#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Remove the Option to Quit]]></description><link>https://www.not-so-guru.com/p/mental-mastery-ccb</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-ccb</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 14 May 2026 10:01:28 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/5e9ebc34-7db8-48c2-a9f5-567b50d28343_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Every time you give yourself an out, you make it easier to take it. &#8220;I&#8217;ll skip today.&#8221; &#8220;I&#8217;ll start fresh tomorrow.&#8221; It sounds harmless&#8212;it&#8217;s not.</p><p>Those small decisions stack. Not in your favor.</p><p>I started removing the option altogether. The work gets done. No debate. No negotiation. Just execution.</p><p>It&#8217;s not about being extreme&#8212;it&#8217;s about being clear. When th&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Consistency Is a Decision, Not a Feeling]]></description><link>https://www.not-so-guru.com/p/mental-mastery-558</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-558</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 07 May 2026 10:02:33 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/c2141074-c346-4dbb-9844-1856d853d776_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people wait to feel motivated before they act. That&#8217;s the trap. Motivation is inconsistent by nature&#8212;it shows up when it wants, and disappears when you need it most.</p><p>Discipline works differently. It&#8217;s not emotional. It&#8217;s a decision you make ahead of time. &#8220;This is what I do, regardless of how I feel.&#8221; That removes negotiation from the equation.</p><p>I use&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Closure Is a Discipline]]></description><link>https://www.not-so-guru.com/p/mental-mastery-7bf</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-7bf</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 30 Apr 2026 10:01:26 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/13528ea7-923e-4829-9d2a-e89062134148_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Finishing is not just a result&#8212;it&#8217;s a habit. One that requires intention, not just effort.</p><p>There&#8217;s always a reason to leave something open. More time, more refinement, more input. It&#8217;s easy to justify delay.</p><p>But leaving things unresolved creates drag. It holds attention in the background and reduces your ability to fully engage with what&#8217;s next.</p><p>Closure re&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Your Environment Decides Your Focus]]></description><link>https://www.not-so-guru.com/p/mental-mastery-222</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-222</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 23 Apr 2026 10:02:55 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/913b9fd9-72c2-4379-89bb-8fd3ea07388e_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people treat focus as an internal skill. Something they should be able to control regardless of what&#8217;s happening around them.</p><p>But environment plays a larger role than most realize. What&#8217;s visible, accessible, and within reach directly affects how attention behaves.</p><p>If distractions are constantly present, resisting them becomes a continuous effort. Ov&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Your Attention Has Been Conditioned]]></description><link>https://www.not-so-guru.com/p/mental-mastery-f37</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-f37</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 16 Apr 2026 10:02:03 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/f27ea28a-4b30-4a4e-910a-e3104790d0d6_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Focus is often treated as something you either have or don&#8217;t. In reality, it&#8217;s something that&#8217;s trained over time through repeated patterns.</p><p>If your attention is frequently interrupted, it adapts. It becomes accustomed to short bursts instead of sustained effort.</p><p>That&#8217;s why staying with one task can feel uncomfortable. Not because it&#8217;s difficult, but beca&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Focus Is Built by What You Ignore]]></description><link>https://www.not-so-guru.com/p/mental-mastery-bea</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-bea</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 09 Apr 2026 10:02:52 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/14316aad-38ea-4672-9871-29ad845ad4a9_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people try to improve focus by adding tools, systems, or techniques. But focus doesn&#8217;t come from addition. It comes from exclusion. What you choose to ignore matters more than what you try to concentrate on.</p><p>Every distraction you entertain trains your mind to expect interruption. It weakens your ability to stay with one thing long enough to do it we&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Guard the Mind&#8217;s Energy]]></description><link>https://www.not-so-guru.com/p/mental-mastery-198</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-198</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 02 Apr 2026 10:01:55 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/3d57be45-a0cd-4379-88f6-b139c180081d_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Mental energy is easily drained by unnecessary worry. Thoughts about problems beyond your control can quietly consume hours of attention without producing any useful outcome.</p><p>The mind often reacts automatically to uncertainty. It replays scenarios, anticipates problems, and attempts to resolve situations that have not yet occurred. While this feels produ&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Restraint Conserves Energy]]></description><link>https://www.not-so-guru.com/p/mental-mastery-97d</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-97d</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 26 Mar 2026 10:01:58 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/1ce44455-5c1a-4161-bbc3-82834ba83882_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Mental energy is often lost through unnecessary engagement. Every argument, reaction, or distraction consumes attention that could have been directed toward meaningful work.</p><p>The modern environment constantly invites reaction. Notifications, opinions, and urgent requests appear throughout the day, each demanding immediate attention. Responding to everythi&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Calm Creates Better Output]]></description><link>https://www.not-so-guru.com/p/mental-mastery-679</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-679</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 19 Mar 2026 10:02:56 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/d68810e6-4900-4ae8-ab63-fd4ba2966dfd_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>A scattered mind produces scattered work. When attention is pulled in too many directions, even simple tasks begin to feel complicated. The mind spends more time reacting than thinking.</p><p>Mental discipline is not about intensity. It is about selectivity. Choosing what deserves your attention is often more powerful than trying to increase effort.</p><p>Every distr&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Calm Protects Energy]]></description><link>https://www.not-so-guru.com/p/mental-mastery-75f</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-75f</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 12 Mar 2026 10:01:49 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/1017086a-f7dc-46d5-a097-c751d41fc0b7_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Mental energy disappears faster than physical energy. Not through work, but through reaction. A single frustrating email, an unexpected problem, or someone else&#8217;s urgency can easily derail an otherwise focused day.</p><p>The mind burns enormous fuel when it tries to control things outside its influence. Worry, replaying conversations, and imagining worst-case &#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Guard Your Mind Like It&#8217;s an Asset]]></description><link>https://www.not-so-guru.com/p/mental-mastery-7b2</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-7b2</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 05 Mar 2026 10:00:53 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/80162f27-ed0d-4a61-bf47-37b3b76821c4_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Energy isn&#8217;t just physical. It&#8217;s mental bandwidth. And most people spend it reacting. A comment, a headline, a message &#8212; small triggers that pull attention away from the work in front of you. Emotional resilience isn&#8217;t built in dramatic moments. It&#8217;s built in these micro-decisions not to engage.</p><p>I used to think mental discipline meant pushing through str&#8230;</p>
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   ]]></content:encoded></item><item><title><![CDATA[Mental Mastery]]></title><description><![CDATA[Restraint Is a Mental Skill]]></description><link>https://www.not-so-guru.com/p/mental-mastery-ffd</link><guid isPermaLink="false">https://www.not-so-guru.com/p/mental-mastery-ffd</guid><dc:creator><![CDATA[Hillman Lentz]]></dc:creator><pubDate>Thu, 26 Feb 2026 10:00:40 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/47c36a33-3ff4-408a-8f76-8ba439640d9a_500x500.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Most people think mental discipline is about thinking harder or faster. In my experience, it&#8217;s usually the opposite. It&#8217;s about knowing when <em>not</em> to engage.</p><p>If you&#8217;re anything like me, you&#8217;ve had moments where a thought felt urgent just because it appeared. A new idea. A new worry. A new angle that demanded attention. Not every thought deserves action.</p><p>I h&#8230;</p>
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