Push shots are caused by a swing that is too shallow and from the inside, many times caused by the body moving in front of the ball during the downswing and causing the club to get stuck behind the body
Do not make tough bunker shots harder than they already are, when faced with a deep bunker with high lips play your stance and clubface square and let the loft of the sand wedge pop the ball up or just play the ball to a lower part of the bunker lip
On long putts practice lag putting to a three foot radius surrounding the hole