seriously NEED help!

in our school choir the teachers are gettin REALLY annoyed about anything and i mean ANYTHING! i would quit but i'm not allowed to cause its 2 weeks to our STUPID musical and i have to sing! they even seperated me from my friend for doing absoultly NOTHING! they shouted at my friend today and called him a smart alek cause hes embarassed about acting!
i am really bugged and they started getting angry after one of them had their baby and the other got married! really stuck 4 what i should do any advice!?!