(original poster here) Don't be scared! If you are here on DisBoards, you are in a good position. Please note that I said that we are having a pretty decent trip. I am a little disappointed however don't take away from that that we are not having a good time. We certainly are! And you will too! But please do all the planning and preparation that you can do. It really IS necessary right now.
You will have a great time. Stay flexible, educated, and adjust your expectations and those of your family. Seriously, this is Disney. It is a good place to be

Don't be scared... be prepared. Once you have done that, relax and let the Disney goodness spread over you....