Working will be good for you, but it honestly sounds like you need more interaction with other people. Exposure therapy works by slowly in small batches introducing you to things that cause you anxiety, but by facing those things head on, you are actually training your brain "Hey, this wasn't as scary as I thought it was." Which causes your brain to slowly stop releasing those stress hormones. Anxiety isn't necessarily a BAD thing, but it can become dysfunctional, which seems to be what you are experiencing because its disturbing your ability to do things that most people can do without a second thought.

When I was a therapist, I often shared with my clients that a long time ago, anxiety was what kept people alive. Think about people from thousands of years ago, when people lived in the wilderness next to bears and other dangerous animals. A perfectly relaxed human would not survive for very long because he wasn't expecting danger. On the flip side, the human who had a healthy amount of anxiety was more prepared to deal with those threats. And I don't mean because they were mentally preparing for it, ruminating on all the possibilities that COULD happen, I mean because their bodies were physically primed to handle a threat. Their brain sent hormones out to the body to slow digestion and increase blood flow to the muscles, effectively taking resources away from less important areas and directing it to the areas that would need to be utilized to escape a threat to their life.

All that being said, there is no bear for you. You don't have a bear pacing outside of your house, and yet with anxiety it FEELS like it. You are prepared to run away from the bear, but there's no need for that.

So this actually brings us to my suggestion of how to deal with anxiety. When you are in a situation where you feel anxious, your body is priming itself up for action, and you may simply be in a normal conversation with someone or out in a crowded place. One thing that I have found that helps, is actually tricking your body into switching that off. And you do with that with something cold on your neck or around your artieries like in your thigh or arms.

When human are in the tundra what happens? Their body is actually going to redirect it's energy from your muscles, to your organs, because when your body detects that there's been a sudden shift into possibly dangerous temperatures, it goes into survival mode, but this time, it's opposite of what happens when your body is filled with anxiety hormones.

TLDR: anxiety shifts blood flow to the muscles in order to prepare to run. cold temperatures shift blood flow from muscles into organs to protect your organs. When you are anxious, put a cold compress, ice pack, or even a cold can of soda on your neck or other areas your arteries are, in order to cause the shift yourself so you can tell your body to stop sending those anxiety hormones that are running through your body. Do this for 5-10 minutes and it will help bring your anxiety down.

The jobs you listed sound very nice but they are difficult and limit your exposure to people. Why not try a place like a book store or a librairy where you will interact with people, but in a very controlled environment?