Doesn't work.
I tried that in the beginning, but as the other boys grew, they became increasingly voilent and physically imposing.
Teachers thought my parents was beating me, when they saw me at gym. But the wounds and the scars was from the boys in my class. That just made it worse.
It was impossible to avoid the assaults while participating in school activities, so I stopped coming after a period.
It didn't help that I was physically unimposing, effiminate and revealed in having a relationship with another boy. (Which was removed from the school afterwards and rescued from evil homosexuality, while I got to stay and take the hate)
I got no advice actually. Suicide seems a real option to many, and I've known people who chose that solution. But somehow I managed to keep on going.
I find it hard to believe these fluffy initiatives against bullying. In my opinion kids are raised wrongly. In my opinion the expected behaviour of genders are erronous. It is evident in what other posts; they hit back. Thus they participate in a voilent culture, a culture some, including me, are not able to participate in.