Group work (kind of vent-y)

Help!

My English teacher is making us work in groups during the week but I'm not in a state where I feel comfortable talking to the people in the group. my anxiety getting really bad and I know the teachers not going to get it since I was fine yesterday, and somewhat earlier today but knowing I have to go to that class and do the group work is causing me to react like this. I don't feel like I'm panicking but I'm starting to feel like I'm shutting down (I'm autistic) and I don't have anything to help. At most I feel like screaming or crying and just laying on the floor. I want to go back home. i felt fine when this period started too, I know I should be ok after the class period (this sort of happened on Friday too) it's gonna feel like forever in there and they're gonna think I'm weird or something. 

and now the teacher in here's getting mad at another kid, this is going great /s. 

i want to go home.