Re: Do any of you waitress or bartend?
Yes, surprisingly enough I was a waitress for a little over half a year. It had its ups and downs. Like others have said, the greeting part was always a little awkward. Although, I too found the constant interaction slightly improved my normalcy with people. It kind of forced me to converse with customers. There wasn't really the option of hiding in my bedroom, so to speak, without the repercussions.
The only downside would probably be when the restaurant was full, the wait staff was sparse, and I had several tables at a time. Anxiety like no other. Then again...in retrospect, the place where I worked sucked. You should definitely go for it, though. You said your SA has improved...why not give the waitress/bartending thing a shot?