Nutrition and healthy living is the best way to get to your full potential height. I've always heard coffee and cigarettes will stunt your growth, but I think that was something they told us when we were kids so we didn't steal cigarettes and chug soda all day.

Overall though you'll probably just need to accept that you'll be around 5'5 unless you haven't hit puberty or something like that. After high school a lot of the focused teasing will slow down. You'll still get the occasional jerk, but you need to realize they'll find anything to be a jerk about, and it's best to just avoid those people.