DukeAMO, you sound as though you feel a bit overfaced at the moment. Diving DOES have a huge learning curve at the beginning, and I think it's both common and natural for new divers to be somewhat apprehensive about their dives. What's more, the common problems of new divers, with issues with weighting and stability in the water, can make dives less than the Zen relaxation you're probably hoping to achieve. But it DOES come -- it comes faster if you work at it, and get some good help.
But I do think, if you have chosen your Caribbean destination well, you will find that just because you are in salt water, or diving off a boat, it doesn't make the diving stressful. I remember floating down into Molokini crater for the first time -- the freedom of a thin wetsuit, minimal weight, and the ability to SEE was just SO wonderful. I hope you have memories like that of your trip.
But I do think, if you have chosen your Caribbean destination well, you will find that just because you are in salt water, or diving off a boat, it doesn't make the diving stressful. I remember floating down into Molokini crater for the first time -- the freedom of a thin wetsuit, minimal weight, and the ability to SEE was just SO wonderful. I hope you have memories like that of your trip.