Most of the tips on here are legit. Don't think too hard about it, just get done with school, work when you can if you want to, and enjoy your social life. If you are sexually active, keep condoms have (you can get them free in a lot of places), be honest with your partner and always get consent. Have fun with it. It's so much better to enjoy a single youth, and wait until later to be serious.

Also keep in mind, the number one deathbed regret is working too much in life.