If you are moving your hands it is impossible to be consistent. A wise old archer once told me this, "after the shot, your hands do nothing".
He meant, don't move your bow hand, dont move the release hand, you can be consistent.
Practice from 5-10 yards, shooting at something the size of an arrow hole. As you get your muscles and brain trained, move back. This muscle training is similar to a person learning to play a piano, after many hours they lay without thinking about every move, the muscles are trained.