Deep dives continued to freak me out for years. Oh, I forced myself through the AOW course and its "deep dive," but I still wasn't comfortable. I think I had done in the neighborhood of 150 dives before I decided to conquer my fears. So I took the PADI Deep Diver course with an instructor who had a lot of technical dive experience, and we went over a lot of things that there was apparently no time for in the AOW course. Now, about 100 dives and still more training later, I am again beginning to look cautiously at deep dives. This time around it's not so much fear and panic as it is a belief that some of these dives push the envelope of safety I would like to maintain around me. I am increasingly shunning anything beyond 90 feet or so.
The panic you experienced is not uncommon. It's a mechanism built into all of us that kicks in when we have exceeded our comfort level and lose our ability to deal with the situation. You have every right to be uncomfortable on deeper dives. I agree with the others who have said you should consider gaining more dive experience in general. Sorry if you may not be able to score that AOW card before your trip, but it's not the end of the world. Safety, including panic avoidance, should come first.
The panic you experienced is not uncommon. It's a mechanism built into all of us that kicks in when we have exceeded our comfort level and lose our ability to deal with the situation. You have every right to be uncomfortable on deeper dives. I agree with the others who have said you should consider gaining more dive experience in general. Sorry if you may not be able to score that AOW card before your trip, but it's not the end of the world. Safety, including panic avoidance, should come first.