Lean the shaft of the club back at address to increase the clubface loft while maximizing its hitting area, then use a double cupped wrist technique during the swing
The most common fault in pitching is taking the club too far back and decelerating on the downswing, practicing how to finish your pitch will solve this problem
Bunkers are easy shots you just need to compensate for the fact that you are hitting sand not grass, plus John shows you how to eliminate the dreaded bunker skull shot