The biggest shock of my life wasn't when I had the ostomy surgery, but a few years before when I was told I had colon cancer. Suddenly my life spiraled out of my control. In less than a month, I had major surgery, and had radiation and chemo scheduled. None of those in and of themselves was so horrendous - they were so big and I was so in shock, I almost didn't even know what to think about them.
What REALLY got to me was the loss of control over my life. Any time previous that there was a big life change, it was due to my own decisions. I was always where I was, doing what I was doing, because I had made a conscious decision to do so. Suddenly, everything I was doing, every place I was going - even what I was eating - was because somebody else told me to do so. The loss of control over my own life was literally staggering. I felt betrayed by my own body, and resentful of everything other people told me I had to do - even though it was to literally save my life. I, too, had the 3 am panic attacks and felt like I was at the top of the track on a run-away roller coaster.
I forget which of the many doctors, nurses, and assistants gave me this invaluable advice which helped turn things around for me. They told me that I needed to "own" my treatment. I needed to regain - in my own mind - control over what was happening to me. I looked around myself and realized that I really had no control over the treatment itself (I still had to do what the doctors told me to do), but I had complete control over my environment outside of the actual treatment. So I literally remade every aspect of my life outside of the actual treatment.
First and foremost, I stopped watching the news. I didn't listen to the news on TV, radio, or anywhere else. I stopped reading the newspaper or any magazines with "news" in them. All the news being reported was negative, and I was determined not to drag down my attitude. I changed my reading habits - I shifted from mysteries and some horror to romances and lighter reading ( I didn't read any Stephen King for over 3 years!). I set up a spare bedroom as my personal activity room, and stocked it with jigsaw puzzles, favorite books, a CD player with my favorite albums, and so on. I made it a pleasant, cozy hideaway I could retreat to any time I was feeling overwhelmed. I tried to learn new activities and downloaded new games to keep my mind active (I wasn't able to exercise much yet or do much physical). And most of all, I kept contact mainly with people who were bright and positive, and helped buoy my mood, and avoided people who would drag me down.
I "attacked" my physical condition like a race to be run, and it worked. I'm not saying I didn't still have my down days - boy, did I! but it went from being all the time to occasional. So that when my peritonitis from the perforated (radiation damaged!) colon struck, and the ostomy surgery that saved (and changed) my life once again, I already had a blueprint for coping, which shortened the time I felt out of control considerably.
Freedancer, this blueprint worked for me, but I don't know you well enough to know what will work for you. But I do know, the feeling of your life being out of your control is most likely at the bottom of many of your bad feelings and panic, and ANYTHING you can do to regain control of ANY aspect of your life will help you. A therapist doesn't have to also be an ostomate to empathize with you - because the real problem is not JUST the ostomy, but the loss of control of your life that the ostomy has brought you. Start with little things. Give up the nightly news - it will only raise your blood pressure, and you can't do anything about what is happening in the world anyway. Actually, that's kind of NOT a little thing, is it? Anyway, since you can't control your ostomy, control some other aspects of your life instead. Check out some mindful meditations, like Immarsh suggested. Keep busy, to keep your mind and body occupied.
And keep on this site - we are all here to empathize, sympathize, and help wherever we can! Keep us posted; I really hope I have been able to help a little.