BT - First welcome to the world of archery and bowhunting. Although archery is fun but to the novice it can be almost overwhelming. I would suggest that you go to a reputable archery shop near you and get yourself fitted for proper draw length, draw weight (start with a comfortable weight as you will be using muscles you hardly ever used before), correct arrows, sights, rests, etc. They will also teach you proper form for your best consistancy/accuracy. Archery is 95% technique. Without the proper form you will become frustrated really fast.
As for hunting deer with the bow. Wow, that's a whole different ball game. With archery equipment you will have to know your ability and not go beyond that. In other words, if you can keep all your arrows in a saucer sized group at 20 that is all you want to shoot. But with proper practice you will do much better than that and at a much greater distance. You can do an internet search for books/dvds on the subject but the best thing is OJT and learning from your mistakes.
What I can tell you that every hunter should know is always try to hunt downwind of where you expect the animals to appear. And even then use a scent killer spray. A good blending camo pattern is useful but not necessary. Deer however will pick up movement, shilouttes, and glint. So reduce these and your chance of sucess will improve dramatically. Remember, if you can see a deer's eye, there is a good chance he will catch you moving. If you must move, do so slowly. Forget it if the animal is looking directly at you. A deer's nose is its primary defense. One whiff of human scent and he/she will either go on red alert or get out of the area. An analogy I've heard is that we smell vegtable soup, a deer smells the peas, corn, tomatoes, etc. How true that is I don't know. But I do know that they can detect odors from a long way off. Good luck.