Dude,
I am 5'6'' and I have plenty of friends who are both taller and shorter. Don't know about sports, as I rarely play anything team based, but I can take down most of my friends who are taller. And I will bite the sheens of anyone who can kick my ass! My best friend is 5'4'' and the ****** gets laid more often than any 6 footer I've ever known. Anyways, the point is, it's not your body that needs to grow, but your sense of self esteem. Yeah, I know that feeling short makes you less confident and feeling less confident makes you feel short, but the point is, one of those can be fixed... without the use of a rack (that wiki link was genious btw).