need hunter safety course.
a good 3 pin sight.
ya shouldnt try and shoot the bow to death....a few a day, til ya can work up to a dozen er so after awhile. too many, you can pull or tear muscles.
start as low as yer bow will go..i.e 50lbs for the draw weight.
find an anchor point that you use every time...mine is my pointer finger nuckle under my earlobe just behind the jawbone, you should be able to open and close yer mouth with-out moving off the target.
as mentioned, get by a bow shop and let them tune it for you. gl