I agree with a651, put the 3 blade prop back on. The first few flights are the ones where you may be the most nervous and that prop will keep it nice and slow and will act as a nice airbrake for landing. Once you get some time in and you start doing loops, rools, stall turns and such then switch to the 2 blade prop.

Once you get to the field, just start watching and learning, ask questions and just mingle in. The beauty of this hobby/addiction is that so many people are more than willing to help and in most cases even will come over before you ask. Never be afraid to ask for help. We have guys at our filed that have been flying for a LLLOOONNNGGG time and still ask for help in trimming a new plane if it is particualrly squirrely.

Again, welcome and take it one step at a time...