I sure feel for you, because I know how it is. Like someone above I was given propranolol and didn't find it useful, at all. (The Trade name is Inderal.) I think it is more useful for people who have stage fright, but not a general social avoidant tendency.

In reading up on this disorder, I read that some who have it will avoid people outside their family, but be very interactive at home. That often applies, especially, to very young people. That's how I was as a child.

So, if you are avoiding even family member, then it sounds like you might have more than Avoidant Personality Disorder going on. I have come to believe that these disorders that come into our lives tend to bring other disorders with them.

I do think you have done a good job of making a preliminary identification of your problem. No, I don't think it can be medicated away. You might have a few problems, and there might be one amongst them that can respond to medication. Getting professional help could be a way to explore some possible things to help you feel less anxious. It's not good to go through life avoiding pretty much everyone. On the other hand, it's not good interacting only to feel repeatedly hurt/rejected/excluded.

I feel for you, because in my own experience with AVP, it seems that I ricochet back and forth between those two things. I get awful discouraged. I've had successes, though. You might have noticed you do better in a structured encounter, like on a job - where you kind of have a script to follow. I did real well in some workplace environments. It took a lot of false starts to find jobs I did well in.

I hope you will keep posting and not give up on finding some outlet for your "animated" self. It is tragic to live as an outcast, even when it feels like our own decision. You have something to offer that only you have. You have value and need to be valued by others. Getting that to happen will probably take a huge effort, but I think trying is better than the alternative.