Just leap in and have a go, you'll learn more on your first attempt than almost any other bow.
If $45 is a bit hard on your pocket, just have a play with almost any branch you can get your hands on first just to get some idea and to help you get your eye in looking at the tiller.
You'll find plenty of help encouragement and humour on this site. We all need the odd bit of advice, even the old hands.
Good luck
Del