lxe, do you do any meditation or breathing exercises? When it comes to anxiety it can really help in the short term. I also depend a great deal on Lorazapam (Ativan) to manage anxiety when it gets really bad but since it can be addictive it's something you should talk to your pdoc about.
I'm so sorry you're feeling this way, it's very familiar territory for me and I know how hard it can be.
Cyran0