Make the most of every moment and share them with the people you love. For there are three things all wise men fear: wasting time on ego, vain, or folly; regretting the times you wish you were there; and spoiling the times you were there.
Build things that solve problems. Bet on yourself. Bet on other people.
Bring your creative visions to life. Experience it all. Let the pursuit of happiness drive your every decision.
While I know I'm not that old, I've had what I'll call a "quarter life crisis" recently (maybe John Mayer and I aren't so different after all). Up until this point in my life, I've been relentlessly preparing for my future. For that "some day" when all the sacrifice and hard work will be worth it.
I went to school and worked my butt off to graduate with a 4.0 from a top engineering school. After working at a successful startup through an acquisition, I decided to pivot my career from a data scientist to a full-stack software engineer to expand my skill set, which required countless late nights and early mornings of reading documentation and building side projects. I've been frugal with what I've earned, saving a considerable amount of money for my future and investing it well since I was 14. All in the name of a better "some day."
Most of what I've done since I was in high school has been to prepare for my future by learning, perfecting skills, saving money, etc. I've never known exactly what I want to do with my life, so instead of attacking something specific and trying to become the best at it, I've focused on growing a wide variety of skills that I've told myself will one day enable me to go after my "something."
What I've realized recently is that I need to figure out what my "something" is going to be. There isn't much more preparing I can do. And I've sacrificed a lot early in my life to get to where I am today--late nights studying while others were partying to get good grades; long hours learning web development while others were going out with friends; and countless nights cooking unexciting dinners at home to save money for the future.
This is why I've written down a manifesto. It helps remind me that I've done a good job preparing for my future and that I don't need to dedicate all of my time and resources today towards improving my life in the future. I don't need to optimize every second of every day. I don't need to save every cent of disposable income I earn. And most importantly, I can go after whatever I want my "something" to be. Today is my "some day" and I should follow my passions and the pursuit of happiness above all else.