Take psychedelics once a year and ask yourself/nature/God this question. Do it with good people in nature (float trip hike, etc) and take time to decompress what you learned after. 

I would say live in the city until you find a spouse, but maybe town is better since I left the city nearby for all it's liberal bs. 

Travel to every continent before the climate change bullshit takes that away. 

Don't fuck around, even if you get on the dating apps, just fully be you from the first date, including how you dress. It's way better to weed out people who don't like you for you over a cup of coffee VS 3 months later and it's way less painful. Wish I learned that sooner. 

Learn to code, even if it's just python. 

Save a minimum of 10% of your income. 50% is ideal if you have a good job. Don't care what your friends or family think because if you do that by 30 you'll be more well off.