Practice, practice, and more practice. I have been shooting over 20 years and when I get out of practice, it takes a good amount of time to get it back. It would also be helpful if you have someone watch you so they can see if you are keeping things consistant. If you are a new shooter, it might take years to get good consistant groups. Just keep your head up, and when you get frustrated, put it up. More bad habits are developed after a person gets frustrated and keeps shooting.