I can relate to how you feel.
I suffer from both social anxiety and depression.
I think the anxiety is worse for me. It interferes in my daily life, and at its worst, I can barely leave the house for fear of encountering people. I know the isolation is not the best thing for me, but I view it as a necessary evil in a way sometimes. Sometimes I just need to have that comfort of being alone and not being judged. I know a lot of the "being judged" part is all in my head or mostly so, but there are times when rational, logical thinking just aren't enough.
I wish right now I could take your (and my) anxiety away. I can't, the only thing I can offer is my sympathy and the advice to hold strong and do the best you can to get through the roughest times. Don't beat yourself up over it. Try your best and know you are not alone. Know things can get better. Hang in there...