The area from 150 yards and in is called the scoring zone because by far the majority of golf shots come from inside that zone, so having good irons and working on this part of your game will have the greatest effect on your scores
Be more creative around the green by practicing different clubs and shots to the same pin location to improve your short game
In the reverse pivot your weight is moving in the opposite direction as the club which causes a tremendous loss of power and usually weak shots off to the right