Get lots n lots of practise!!! Shoot your bow in many different positions. If you're going to be using a tree stand, shoot from it. If using a ground blind, shoot from that. Shoot standing up, down on one knee, and down on both knees.
Scout the area you plan to hunt. Look for deer trails, then look for food sources. Acorns are either already falling or wil begin to do so very soon. Find the oak trees that are dropping. Then find a trail leading to or away from it and set up your stand/blind.
I'd also recomend reading. A lot. Magazines, books, message boards. Read, read, read. Lots to be learned out there.
Most of all, enjoy every moment you spend out in the woods. Respect the hunt, your quarry, and the environment. Familiarize yourself with all local and state hunting rules and regulations, and follow them to a T. Looking at topo maps or satalite images of your hunting area will also help a lot. Go to Google maps. Very easy to use.
Practice shooting from various positions. Run several laps around your house as fast as you can, then grab your bow and shot 3 arrows while your heart is racing. Keep doing that several times in a row. This will help you overcome buck fever. Oh yeah, don't think that you won't get "buck fever" if a doe walks out in front of you. Your nerves will be on the verge of exploding! lol
Practice shooting.
Did I mention practice shooting??? Definately do that.
Good luck, kid. And welcome to the boards and the world of hunting!!!
Kind Regards,
Axel