1. The world is trying to keep you stupid.
2. Do not have faith in institutions to educate you.
3. Read as much as you can. Learn to speed read with high retention.
4. Connect with everyone, all the time.
5. Don’t waste time being shy.
6. If you feel weird about something during a relationship, that’s usually what you end up breaking up over.
7. Have as much contact as possible with older people.
8. Find people that are cooler than you and hang out with them too.
9. You will become more conservative over time. For this reason, you need to do your craziest stuff NOW.
10. Reduce all expenses as much as possible.
11. Instead of getting status through objects (which provide only temporary boosts), do it through experiences.
12. While you are living on the cheap, solve the money problem.
13. Learn to program.
14. Get a six-pack (or get thin, whatever your goal is) while you are young.
15. Learn to cook
16. Sleep well
17. Get a reminder app for everything
18. Choose something huge to do
19. Get known for one thing.
20. Don’t try to “fix” anyone.
http://inoveryourhead.net/20-things-i-should-have-known-at-20/