theres some stuff we learned at pool school that can help you with this. Get some of those little notebook ring binder stickers (little sticky circles), or if you arent on your own home table, just take a piece of chalk and mark a simple shot (cueball position and object ball position). This allows you to shoot the exact same shot over and over again. Set up something simple like the ob about a foot from the corner pocket, the cueball on the spot with a slight angle. Now shoot the shot over and over with different english. Its incredible how just top, center and draw can change your shape on the table by 8 or 9 foot. The pro pool workout also has some similar stuff in it thats good.