The moment of truth in the golf swing is when the club impacts the ball and using an impact bag will help you get the correct feeling of impact
We are looking to create a clubhead that is traveling down to hit the ball, so take your address position and straighten out your left knee, this will bring your hip back, move the shaft forward and straighten your left wrist
You might not have time to practice as much as a professional but you can have their set up in a matter of minutes, concentrate on keeping your upper body balanced on top of your lower body with your arms centered and not ahead of the ball