You're already quite tall. You should move to a place where the average height is low so that way you can feel like a giant. That's how I feel when I walk around a part of town that is full of little old Mexican ladies. They're all about 5ft on a good day. I'm 21 and my breasts and hips have grown, but I haven't gotten any taller since I was about 18. Of course there are surgeries for elongating legs and spines. I however don't think it's worth it.