Working on a computer or gripping a steering wheel can cause your wrist extensors and flexors to stiffen up and limit their extension in your golf swing
Start with a neutral grip making sure that your left hand is not turned over or under the shaft, this will prevent you from manipulation the clubface at the top of the backswing
Developing resistance on the through swing of your pitch shots is critical for control, this retraction drill will also keep your club accelerating, avoiding the biggest mistake in pitching which is a decelerating clubhead