I'm ridiculously bored here. I wish I could just leave
Can you just leave? Will staying make you feel worse?
I already feel like ripping my head off
It is hard to stay in a place where you are feeling stressed but you should think more about leaving. People will think that  you are rude if you just take off.
They shouldn't care if I go. I feel like I'm going to slam my head against the door a lot of times
People might understand if you're really that miserable, but you should let them know. They'll think you're being rude if you just leave without say bye.