Although I know it is easier said that done. But truer words were never spoken.
How I wish I could go back to your age and forgo all of those sexual, co-dependent relationships and concentrate on school and finding something worthwile to do with my life. Love Love Love. That was all I wanted. In looking back I can see that I might have acutally gotten what (and who) I wanted if I had just stayed put and put my development first.
Of course, those nasty little hormones can get in the way. I am 60 now and I realize it is easy to forget what it was like to have such fire running through your veins....