First of all. Did you buy the bow at a pro shop and have them set it up for you or did you just buy a used bow and go start shooting. Is it hard for you to pull it back? Can you hold it steady at full draw? I guess I need some more information on what you are having problems with. Without knowing how the bow is set up, and what problems you are having, it's difficult to offer any advice on how to shoot better.

KEEP IT LEGAL. KEEP IT SAFE. OR WE MAY NOT GET TO KEEP IT AT ALL.