What would you tell 16 year old you?

Spend less time on the computer and more time with real life friends. Didn't really hang out with my old rl friends after age 16 because at that age you're done with compulsory education in Finland and we all applied to different schools. In the "equivalent" of high school here, faces would change every course, so although I got many friends there, I didn't end up spending time with them outside school.

If I had been more social, maybe I woud have a girlfriend already. But here I am, 20 and zero experience with women.