Don't stress too much about your education or career. Procastinate doing things you find interesting, but at the same time strengthen niche skills. Party now, when you hit 30 the hangovers will most likely be unbearable and take too much time. Live in a dorm and travel abroad alone, this will let you meet people you wouldn't have otherwise. Go to festivals. Have one night stands and non-binding relationships. Make mistakes and do stupid stuff, you will learn from it. Be a part of a subculture. Try not to hurt peoples feelings. Be nice and people will reprociate. Have fun.