how about a teachers aid helping you in the classroom or even some of the kids parents as vollunteers. or even asking the pricipal or the school security people to make surprise visits to the room. Most kids can sense when a teacher is having a hard time but usually settle down if there is more than one. That might help with the amount of fighting going on in the classroom.

your family physician can prescribe medication that may help or adjust your medication if you already have medication.

Talking and brainstorming with a therapist can also help.

Hang in there