You should never hate anyone, even your worst enemies. Everyone has something good about them. You have to find the redeeming quality and love the person for that.
I reached my full height at age 11, and I was clumsy as all get-out - all elbows and knees, couldn't get up a flight of stairs without falling down. I wanted to be a cute, petite blonde, but I'm a big ol' strapping thing, so I just accept it.