Wearing bifocal or trifocal glasses can offset your balance and swing. This often happens because you are trying to see below the bifocal or trifocal lenses in order to look at the ball. This will cause you to lower your chin and offset your balance.
Trouble finding the correct distance between you and the golf ball.
Trying to hit at the ball will cause you to lead your swing with your hands instead of your body or stopping the swing at impact. Your palm might be facing up during the backswing, causing poor contact and unpredictable ball flight.
Slicing the ball is your biggest problem but that is only because you have such a fast swing.
Keeping extra balls or a pocket watch in your right pocket, cell phone clipped on your right side, or other objects that will interfere with your right arm through your hitting area.