Welcome to bowhunting. To Kill a turkey with a bow is some accomplishment but it can be done. You need to practice as much as possilbe, make sure your bow is tuned well, and you pick quality equipement such as sights, rests, quiver, arrows and broadheads. There is a lot to learn before your ready and it can be overwhelming. On the other hand it's not rocket science. I suggest you read through my link, learn to tune your bow and get some instruction on proper shooting form. The better you understand your equipment the more confident and better prepared you will be.
http://www.broadheadtests.com/TUNING.html