Can’t sleep

My anxiety is getting to the point where I just feel like death. I’m so nauseous that I can’t sleep or do anything I’ve already miss so much class but I don’t want to go tomorrow because I haven’t slept and feel terrible. I can’t even breathe right now without feeling this pressure in my chest like I’m going to hyperventilate. I almost wish I could just have a panic attack to exhausted myself enough to sleep. I’m just so mentally and physically tired and I dont know how to help myself anymore