I don't know if this was suggested already, since I'm relatively new here.

But did you ever consider getting a service dog for anxiety issues? They can be so therapeutic. I remember how I look forward to seeing the service dog at my daughter's OT clinic. Just petting him can be soothing. So much so I really am looking into getting a dog. This dogwish.com has some great dogs: http://www.dogwish.org/anxiety-service-dogs2.html

Something else to consider is a support group, like the Brain Injury Alliance. I found a teens support group and it was really nice for my daughter to meet other kids with similar symptoms. So she didn't have to feel alone in her struggles....

And of course, family and friends around are always a good thing.

Hang in there!