You'll need to find job that doesn't require talking to people. Or you could try and get on SSI. I had to get on SSI Disability because I couldn't keep a job either.
I have trouble with social anxiety too and can't muster up the courage to talk to anyone and I still can't.
If you can't get on ssi then you might be able to make some money working from home on your computer.
You can create a website and make money through advertising. You could also try and do some freelance work.
You'd only have to talk to people through email.