Dang, that’s a heavy order! But ok, here goes:
You don’t find yourself, growing up, you make yourself.
Don’t just hang around places waiting for enlightenment to dawn. Don’t wait and wait, wondering why everyone else seems to know some secret that makes them so much more real than you— don’t be passive. As my mom says: take initiative! Everything you do makes who you are, so if you want to be someone, you have to go and very thoughtfully build that someone. Make them out of all the good and bad books you read, and the shitty and boring and wonderful people you hang out with, and the long sad nights where you miss the bus and walk home all cold and wondering when is your life going to begin already? It has. Watch tv. Go dancing. Grow some plants. Learn to knit. Fail a lot—every failure is a lesson, so fail. It’s ok. Keep going.
Also don’t kill yourself. Do not kill yourself. If I can give two pieces of advice the second is don’t kill yourself.