Honestly it isn't rocket science.
If you can shoot, your broadheads are sharp, and you are physically able to wander around the woods, you are ready.
Use the internet or stop by the local Game Warden office and figure out your nearest public land open to deer hunting.
Read the reg's, follow the rules.
Grab your bow, throw on a day pack with things for comfort and safety (you are a veteran, you know what goes in the pack), and hit the woods.
Wander around and take it all in. Deer sign, terrain, just be there and enjoy it.
If you should get an opportunity, kill the first legal deer you can. Worry about horns later.
Hunting...bowhunting...traditional bowhunting is about a lot more than hanging bucks on the pole. Learn to just enjoy being there first. Freezer meat is just an awesome by-product