Jay R, Welcome. It sounds like you had a pretty good game for your first time out.
If you have trouble remembering which way to point, put your open hand up and say the color that will have possession in your best "outdoor voice". That way if you point the wrong direction you have verbalized correctly.
(if I am wrong about this mech. someone will correct me)
There is much advice to be had from the "vets" on this board. Come here often. Ask questions.
Get a mentor if possible. That way you can have a helpful partner even if you don't work the same games with him/her. Is there any chance that you could be scheduled with the same "helpful vet" for several games. The more you can work with vets that are interested in helping the new guy, the better off you will be.
Mike