Such is life
I've taken four language classes and I've told the professors about my social anxiety problem, and they have made exceptions. When their is an oral, I usually do it in their office away from everyone else, even though I am still nervous. When they ask you questions in class, it's very nerve wracking, but I get through with it and it's no big deal. Just smile if you mess up and don't freak out, it's not that big of a deal. Language classes are quite fun for me, even though they seem scary for me too.