Usually you want to splash your ball and the sand out of a bunker, but when the ball is buried this will cause a skull, so in this situation you need to use your sand wedge to dig below the ball
Juniors tend to swing harder for more distance, but what is really important is they stay in balance throughout the swing
Advanced players who need some help with the top of their backswing or sequence should try this drill, take your club to the top of your backswing and stop for a second before you start your downswing