It's hard having secrets, isn't it?
If your friend is a psychologist she will understand mental health, she wouldn't think you're crazy. You're NOT crazy .
Xanax, eek. I don't know the other meds you're on but I was on xanax in Spain - HATE it. You know what, apparently they won't prescribe it here in England. There has to be a reason for that. I was a zombie on it, and it made my anxiety higher in my opinion. If it works for you then good.
Maybe you could ask your doc to adjust your meds or something if they're not working? Do you think they're working?
Oh just noticed you mentioned prozac too. I've not noticed but my mum said when on prozac my anxiety seemed higher too. I had death anxiety, constantly thinking of all the ways I might die.

How far is it to get to places you need to go? Is it possible for you to go on a bike?
Do you live alone? Perhaps you could join friends when they go out, like say if you need to go shopping, you could go along with a neighbour or friend when they go?
Sorry I don't have any good suggestions.