Social Anxiety?

Hello, I need some advise. I think I'm suffering from some kind of social anxiety, let me tell you a bit of mu story. I'm 25, I jsut graduated from university and I'm looking for my first job. I'd never work before, only some privite practice but they were a month long and I don't think I got much experience. Well, I actually got a job a few months ago it was with a nice lady but after just 3 days I could not stay. I panic!  I cried a lot...(I cry about everything 😥)... and I quit. Some days I regret it and others don't. Now I'm really scared of going to any interview and actually getting a job. I panic about it and dont go to any interview. I'm actually scared and I don't think is normal. I haven't talked to anyone about this, because I'm sacred they'll think I'm nuts. I need some advice please.