I wish to applaud your perspective on planning. I consulted as a business strategist for more than ten years prior to launching my own shop, Performance Transformation, LLC, so I know how critical planning is for success. It is refreshing to hear a younger, tech entrepreneur embracing this perspective as so many think the best way to go about launching their endeavor is "just do it".
One comment I'd like to make, something I've learned to appreciate as one of the subtle keys to success, is rather than take your emotions out of stressful situations, embrace them from a position of higher consciousness. Our emotions are part of our ancient survival mechanisms. They're here to help inform us about our environment, both internally and externally.
When we cultivate self-awareness, social awareness, self management, and relationship management competencies we develop Self Mastery. We develop the witness to the emotional stimuli in our lives. When we master our emotions by embracing and understanding them, we expand our functional bandwidth and find ourselves capable of connecting, engaging, and motivating those around us without the use of coercive or dominating behaviors.
If you'd like to learn more about this perspective, you're welcome to visit my open blog at http://yourbizstartup.com. You may also find some useful insights from my book, "The Transformational Entrepreneur ~ Engaging The Mind, Heart, & Spirit For Breakthrough Business Success". You can "look inside" the book on Amazon.
Again, great article and I wish you the best upon your journey!