Two things on the breasts part:
I used to feel the exact same. Barely an A cup, barely aroused in that area as well. 5ft 2, and the list goes on. My social anxiety hasn't been much focussed there, but it used to be. Having children changed some of that, but... I had to have children first, which meant a relationship. Maybe I was lucky? I don't know.
Anyway, if you're wanting TV references, have you ever watched Gilmore Girls? Lorelai has almost nothing in the way of breasts. She's beautiful but you really just don't even notice that she has barely an A cup. Yet it's true.
But honestly - judging off of TV isn't healthy and isn't reality. I once worked for a company of misfits. Everybody was just kind of 'different' and awkward and it was great. When I worked there and I was 'in the zone', my social anxiety was a whole lot less loud.
I think it's hard. Really hard to get out and socialize when your mind is crushing you. I've begun to force myself towards what scares me. Sometimes even asking questions about what somebody perceived from the words that I spoke - because my mind supplemented the worst possible way they could have heard it. So far, my mind is never correct. So far, everybody is far kinder than anything I unknowingly think up.
I'd be willing to bet you'd find the same. If I had an asian friend, I'd be fascinated, asking questions and happy to know you. Partly because I think it's important to know people who aren't like me. Who think differently. Because it helps me to grow as a person and challenges my perspectives... which I need so much.
But I am finding that ultimately, I need to be ok with me and to even try and love me. That's hard when I've got a part of me constantly criticizing every stinking thing I think and do, but it is something I am beginning to learn to do more and more. Maybe this is an area that you could spend some time in too? Maybe forcing yourself to get out and be in social situations - in mellow ones at first. Maybe just a coffee stop or something and build up to bigger things? I assume you're on here to not be chained up inside your mind. So hopefully my suggestions might spur thoughts that can be considered as 'better than yesterday' for you.