Learning a new disclipline, and it requires that you receive a education relating to your new endeavors. Much help is available as are courses to assist you over/through some hurdles before you. A handgun is an entirely different animal then a rifle and shotgun. Distances will be very much limited to 25 yards and under, in fact for the first few sessions 10 yards are more then enough. Many things enter into satisfactory accurancy. A course or shooting school isn't out side the bounds of possibility, if you desire to shoot well rather quickly. Things such as recoil anticipation can cause low hits, Not just "milking". Seek help from a knowledgable shooter if available and practice as much as practical. Lastly enjoy you efforts.