HELP!!! every person i know calls me...?

Bigfoot (except my friends)beacause my last name is foote and im 5'11' and in middle school they also call me sasquatch,godzilla,retard,and the worst....ive beaten the s**t out of some poeple for it but they still bug me and i frickin tried of it and ive had my period since i was 10 so sometimes i get emotional and cry/beat someone up even harder than usual! what do i do!!!!???????