Yeah dont worry at all!
I was on the Pride and its amazing... Let me know if you would like to see some pictures... Its a fairly new ship, so you have nothing to worry about. As for meeting people, you will mostlikely meet lots- no matter how shy you are. Trust me, YOU WONT BE BORED!!!
Ask anyone on this site- I doubt they have ever gone on a cruise and absolulty hated it!
Oh and as for the plane, I dont care for them either- but think about how much fun it will be when you finally do get there!