HI: I have completed 25 cruises on HAL and 2 on Carnival, and I still get nervous making that commitment to "Book A Cruise" and about 3 weeks before I cruise, I start thinking about all the things I need to bring! It's perfectly normal.........Enjoy Your Cruise!
I get really nervous as well and it always manifests itself in a sort of "let down" mode. I think that I am so eager that I fear dissapointment. I have started circumventing the feelings though by keeping a chest full of cruise attire and notes of things to bring...That way, I am ready year round!!