Good advice from G. Owen.
One thing I've had to overcome is "shooting from memory" .... Let me explain.
It usually doesn't happen unless I'm 25 or 30 yards or farther... What was heppening was, I'd find a spot to shoot. Look at it , draw, anchor, settle, and shoot for the spot I saw, or "Remembered" and let the arrow go... Many times it would fly aloft, missing the mark.. I figured out when I stare at the spot and draw at the spot and anchor at the spot and settle at the spot and stare at the spot some more and the release happens at the spot... Mysteriously, the arrow hits the spot... Imagery is good, before the shot, but when it comes time to shoot something, look at it a let it happen.. You can not hit what you can't see...
Steve