in order of importance (but like all of life these cross pollinate):
1a. self discipline.  ex: 2min of pushups, same time every day.  
1b. have a life mission statement, a 20-40 year vision, and 20, 10, 5, 1 year SMART goals.  learn about SMART
2. physical fitness. includes diet.  my biggest regret.  don't need a gym but be systematic
3. rawdog life.  avoid sugar, porn, alcohol, psychoactive compounds, caffine.  especially porn. 2nd biggest regret
4a. stop talking so much.  ask questions.
4b. meet weekly with a group of people where you do things together and where you listen
5. tell the truth
6. honor your parents and elders. as in, actively show honor.  i don't care how bad they are.
7. have a couple things you're good at that can make money
8. have a couple things you're good at that make people happy / laugh
9. read the classics.  read a little every day
10. memorize poetry / stories / songs.  third biggest regret