Go or stay in school, no matter how fucked up you think it is. Everybody says they tried but make it so you say you did go to school.
Get as many bitches you can, use a condom time to time cause I see 22 yr old already settled down.
Go to another country, cool and interestin to hit another country. Or at least hit another state, I think its cool to travel all over. I know too many who rarely get out even the city.
Thats all I can think of so do as much as you can, being 21 is ok but still fun, its jus 25 you have to worry about. Also................Dont get shot