"When I was younger, I definitely let it get to me. As an adolescent, I was bitter and angry, and I definitely put up these walls. But the older you get, you realize you just have to have a sense of humor. You just know that it's not your problem. It's theirs." - Peter Dinklage
He's talking about having dwarfism, and while most people don't have to deal with that extreme of an issue, what he said can still apply in a lot of ways to many people.
For me, personally, I struggle with the way I look because of how young I look, but what Peter said is the truth - it's other people's problem and not my own. I'm the one with the young face, but people's reactions to it are based off of their own interpretation of things and their own outlook. I can't change my face, so what do they expect? Most people are tactful, but quite a few people are not. I have to remember that it's not my problem because there's nothing I can do about it. It's their problem.
I think the same thing goes for people with anxiety disorders, or anything else that isn't their fault and either can't be changed or is a work in progress/not easily changed. As bad as people's reactions can make you feel sometimes, remember that it's based off of what's going on inside of THEM and not what YOU are doing if it's simply a problem you have or something that makes you "different".
Coyote says something like that a lot, and he's right
