Does anyone else feel that social anxiety is ruining your life?

I’m 22 and I feel behind in life compared to other people. I know that comparison is the thief of joy, but it’s hard to not feel like I’m useless in this world. I can’t bring myself to do the simplest of things, like driving, going to a grocery store, talking to people, etc. It’s even hard for me to feel relaxed when I’m at home. The only thing that seems to make me happy is listening to music. And I feel like anxiety is making me feel physically ill as well considering that everytime I go to work, I feel like my stomach is rumbling and I have to rush to the bathroom once or twice an hour to make sure I didn't have an accident. Living this way is seriously making me feel miserable every single day. It has gotten to the point where I'm constantly thinking about how I would kill myself so I can just escape from this life.