I just finished my confined water dives and knowledge reviews about 3 weeks ago. Going into the first pool dives I was a bit nervous. I didnt really know what to expect. After breathing underwater in the shallow end for for awhile I became really comfortable. I was a bit nervous going into most of the skills, but didnt have any problems with any of them. Our first mask flood was only half full and I cleared it easily. The regulator retrieval was very simple. I guess it helped to know the surface was only inches away if I screwed up. After that I never had any problems whatsoever. When we did our deep water swim arounds after our skills, I would practice the skills most people dont like. Taking my mask off and putting back on never bothered me at all. I know that I have plenty of air to breathe right there, so there is no need to panic. Just relax, take your time, and complete the skill.
That said, I havent experienced my open water dives yet and I must admit Im a bit nervous about that. I will be in a lot colder water than my confined dives, and that alone worries me. My confined dives were in 85 degree water and my open water dives will be in 68 degree water. Brrrrr!
I have to agree with Large_Diver....It will be an ongoing experience of "first times", all of which will make me very nervous. But I think that is a good thing. Being nervous will help to keep me focused on what Im doing and the dangers involved if I dont do it right.