Try talking to your doctor about medication and cbt therapy. After working in retail for 3.5 years, since i was 14-17, i ended up quitting. It was so difficult that i couldn't even give a weeks notice. I was having panic attacks that would last all night before work, so no sleep for me. Then when i would wake up to shower id end up collapsing on the floor, curling into a ball, crying, trying not to pass out from lack of breathing, threw up, all up to the very minute i pulled into work.
Then, at work i would sweat constantly, tear up a bit, shake, my anxiety tic is a constant runny nose and annoying cough. I would get yelled at for that by customers too.
Then at home. It's supposed to be time to relax right? No I'd take off my sweaty work shirt, unzip my pants to get in the shower, and then just look at myself in the mirror, have another panic attack knowing i'd have to go to work tomorrow. Time for dinner. Nope. I could never keep food down, i'd throw it up.
If its this bad, quit.