I Am Bullied At School

Im not the type of person to take shit from anybody or Allow people to talk to me any kind of way or push me around but..today I was bullied , They Ganged Up on me and as much as i tried to hold my ground, I couldn't. i never felt so weak and defenseless in my life. The teacher didn't even stop it. I myself have issues With my Temper and people fail to understand that because im always smiling and So happy and energetic. Iv learned to tame myself and calm myself but today they pushed me to A Point I havnt reached. The teacher wont help so im gonna take things in my own Hands.