You search your area for an archery shop, or club. All too often people start out with bows with out being properly measured or with mismatched equipment. The items to considered are draw weight, draw lenght, left handed right handed? let off, arrow lenght, and weight, release or fingers? peep sight, type of sights, broadheads, etc. It's really not that confusing once you have it set up, please don't let me scare you away, I'm only suggesting you don't buy from a ?mart clerk who has worked sporting goods for three hours. The local archery shop can also give you good advice on licenses and seasons and have your arrows flying properly and on target. Once you get into it properly, it's a wonderful sport. If you don't have an archery shop look for a club and drop in. Most members of archery clubs are more than helpful.
Keep us posted on how you make out and don't hesitate to ask any questions. Just sort out the answers that make the most sense to you and go with it.
good luck.