If you've lost your touch and ability to control short shots, try this...
Change your set up so that yours swing relies more on physics than feel. Here's my formula:
Short pitch: Grip all the way to the bottom of your club and narrow your stance to the point where your feet are touching. The shorter lever and the limited flexibility will limit the distance you can pitch the ball.
Medium pitch: (photo, left) Hands mid grip, stance half its normal width. This will assist you in pitching the ball intermediate distances.
Long pitch: Hands almost to the top of the grip, stance your normal width. This set up is like that of a full swing, so be cautious and practice accordingly.