What is a good job for someone with severe social anxiety?

working in a morgue should do it; you wont get into any arguments either

Well, you've got a big problem with a lot of the available decent-paying jobs between those two items: being young and inexperienced, and then the social anxiety issue. However, there's one job I can think of that someone that's having a hard time with the social aspect can do, that also fits your limitations of experience: late-night office cleaning. It may not pay much more than minimum wage, and I'd advise you not to think it's likely to be something you can do for a living until you retire, but everyone needs to get some job experience somehow, and the first suggestion (medical transcription) may not work out too well, at least in comparison, due to various issues such as having enough work to do. By contrast, if you work as a late-night janitor in large office buildings (or several smaller ones) you'll have less in the way of human contact to make, an more regular hours, too, and (I suspect) fairly little competition in the job market for such positions. My first couple jobs with a regular paycheck (not counting a paper route) was doing janitorial work.

How about some type of a delivery person. Like Fed-ex or UPS. You would be in a vehicle most of the time and not really dealing with the public. I have it to but luckily I have a job where I work from home.

try working in a garage like goodyear, or ups, I use to work at ups and it is beautiful no talking, no gossip, no obligation to be friendly or change your mood according to someone else's liking just show up on time, and do your work, then go home and be comfortable

If you could do medical billing/insurance from home, you may do well.

Librarian. Easy work hours and very low stress. It is a quiet environment and you're job description is pretty clear cut. You just organize stuff and put things back where they go.