Was your counselling CBT ? I had this weekly for 9 months, through the NHS, and it transformed my life.
I also found several books by Dorothy Rowe of real comfort, particularly "Beyond Fear" which helped massively with understanding the panic and fear.
At the risk of sounding flaky I also spent a lot of time reading about mindfulness and meditation. I managed to start a fairly regular meditation practice, only about 5 to 10 minutes a day. It slowed things down for me, when you feel like your mind is a merry-go-round and you want to get off.
In the last few months I have forced myself to face up to 3 fears I have had for ages, two mainly irritating, the other one stopping me doing things I wanted to do. The first two I just decided not to think about it when faced with them. I pushed myself into the situation, endured the discomfort and now I'm ok with doing them again. The third needed some diazepam but it worked and I was on cloud nine for days.
My problems with anxiety were about 15 years ago, it lasted for about 3 years. I couldn't ever imagine things would change, but they did. Every now and again I get that gut wrenching fear and panic feeling, and the foggy mind. I tell myself that it will pass, that it's only thoughts, and I try not to over analyse them too much.
My final hurdle was also going back to work after being a SAHM. I still couldn't/can't face the whole job interview thing, and so have set myself up as a little one-man-band working locally. Being a bit vague as I don't want to out myself. Whilst driving to a potential new client recently I suddenly felt panicky and anxious. I said to myself what's the worst that can happen? Also, I knew if I turned back the feeling I would have would be far worse than anything that could happen at the appointment. I went and it was fine.
I really feel for you op, I remember the exhaustion of it all. I'm sure you will find your path out of this, so sad that there are so many of us well-qualified to post. Good luck.