At several points I wasn't able to make myself leave the house without a companion and completely lost my independence when I wasn't able to drive. So I take baby steps with everything and revel in every little triumph I make, whether it's stepping out into my back yard or driving across the city by myself for the very first time. I was pretty bad up to last year and still have bad moments. But it gets better.
I think what I hate the most is feeling so helpless and vulnerable; the thing that first helped me was finding out what was exactly was wrong with me instead of feeling I'd simply lost my mind. I think one of the best steps I ever put myself through was joining a TOPS chapter. Not just for losing weight, but I needed the social aspect of it as well as the whole forcing myself to get out of the house thing. I'm currently not working (not sure I can handle a regular job until I have a better grip of this) and have had a hard time getting out and meeting people ever since I moved out of state.
I think eating better has helped a lot, partially because it gives me a sense of control over something positive I'm doing for myself (which is a mental boost), and partially because it's just healthier in general (which of course is both a physical and mental boost). Exercise helps me as well, although it's something I typically have to talk myself into since i'm not always entirely comfortable with it. I personally think it helps work out all the body chemistry that builds up during the panic attacks.
When I'm having a panic attack, I try to situate myself into a familiar, comfortable area, breathe, and pace as I give myself a mental pep talk. And when I have the time (when I'm not in the midst of an attack) I allow myself plenty of peaceful, quiet moments to relax and de-stress, which I think helps find a balance.
I'm not sure if any of this will help, but I wanted you to know I understand and that none of us are alone. Just as I'm finding the strength to get through this, I know you will too.