I've said it time and time again. The only way to deal with bullies is to enter a short period of Rocky 3 training, with suitable montage music. The last time I got picked on at school, I simply rented a log cabin in Alaska and started to bench press a few tree-trunks. In addition I completed a set of hill reps each day up a snow covered hill whilst pulling a fully laden sled.
Four months later, when I got back to school, I was more than equipped to deal with my tormentors. Although they continued to fill me in on a regular basis, I simply responded to all their violence with the retort "You ain't so bad"
It worked for me, it can work for you.