Adults in their 20s and 30s, what is a piece of good advice that you can give to High School Seniors?

For reference - Late 20s so mostly college aged advice

Things that worked for me

1) Education - Focus on school (got an engineering degree)

2) Finance - Being financially cognizant (lived from home a bit at beginning of college and right after college. Made expenses lower and paid loans off quickly. Also didn't go to crazy expensive school)

Things I wish I did better

1) Interned or Co-op'd earlier. Would of helped getting me a job I wanted out of college instead of a year of taking internships to figure out what I wanted to do after.

2) Could of tried trying harder. I could have definitely finished my degree sooner, but I was apathetic and played too many video games.

Things I did bad that I'm working on

1) Social Networking - I was able to get my first internship through a friend. I didn't really try to make friends until schoolwork got hard then most of my friends were classmates and then coworkers. As you grow older people disappear. Stay active in your community or op-ed sports etc. Also probably stunted my dating life by isolating myself.

2) Fitness - School had a dope ass gym I could of been using in between classes and the first 4 ish years I was there. I could be so swole right now!!! I didn't use it until the last 2 semesters I was in school.

/r/AskReddit Thread