I've having bad anxiety anxiety all week because of exams, Very bad cheat pain, Difficulty breathing, And can barely talk or move, And I can't sleep or eat


I have two exams left and honestly I don't think I can do it, I've been thinking of taking Propranolol, I've read a lot of good things about it online 


I never took any anxiety meds before, But if it will help me get through this I want to try it


How long will it take for it to take effect ? Please don't tell me It's going to take weeks because I want it to work today and by tomorrow.