this is kind of a weird tip but….if you bear down like you’re going #2, you activate your vagus nerve and parasympathetic nervous system. it sends your body’s attention away from the sympathetic nervous system (which causes the shaking and sweating, faster heartbeat, etc). another thing I would suggest is box breathing. inhale as deeply as you can, try to visualize filling your entire abdomen up with air for 4 seconds. hold it for 4, and exhale for 4. repeat as many times as you need. it’s nice because it’s not obvious to the people around you when you’re in class. and another tip my therapist gave me is physical exercise. like literally going to the bathroom and doing jumping jacks or running in place, maybe running up and down a flight of stairs. if you’re able to, go see your doctor about going on a beta blocker. they help with the physical symptoms of anxiety!