I suffer from debilitating anxiety as well. The first cruise I ever went on, our table in the main dining room was next to a window. I remember our first dinner, I literally was so anxious when I looked out the window that I could not swallow (it was like the muscles in my esophagus froze up) the piece of steak that was in my mouth. All of a sudden I realized we were out in the middle of the ocean trapped on a floating piece of metal as you described it :). I do take a low dose medication daily for my anxiety so I do drink alcohol in moderation while on vacation. I would recommend identifying what could possibly be triggers for your anxiety before you go and then try to avoid those triggers (i.e... don't sit by the window during dinner if you think that would be a trigger). I also try to focus on the advice my therapist has given over the years - like capturing my thoughts and try to replace the anxiety ridden thoughts with ones that are factual and positive. For example, focus on the fact that people cruise every day, the captain and crew are very competent and they don't want anything to happen anymore than you do, etc..... Anyway, that's probably way too much information than you wanted, but that's the way I plan to handle our cruise in June.