Anxiety or social or pressure with large numbers of people

Basically, I feel like every glance and every soul is torturing me. It's not physically, but mentally I'm constantly checking what people might think of me and trying to move and do things perfectly so no one notices me or looks at me and thinks I'm just a normal person. But in trying, I end up doing worse. When I try to move and do things perfectly, I end up doing them wrong. I do things badly trying, haha. What would you guys recommend?

I listen to and read everything, thanks for reading :3