If you are a young man, please find something else to complain about or attempt to find new friends. If you are a young gal being that tall could have disadvantages, ask you friends to stop if they have any respect for you at all. On a cynical note, depending on your weight and other looks, I would imagine you could possibly make one hell of a new supermodel if you could stand the heat of living in THAT world.
be patient,in a few years the people that teased you will see life differently. while they are still short and starting to get fat,you will remain tall and still looking good. just don't start to slouch because they're teasing you. be proud that you're tall. besides,most of them only tease you because height is a little fascinating and a few of them always feel like they MUST say the same old jokes about tall people for attention. kind of a boring way for them to get noticed. forget about them.