Get your hands on the club properly and learn the correct grip pressure by sliding two tees between your thumb and forefingers and hitting balls without dropping the tees
Do not practice before a round the same way you would if you were working on your mechanics, get target oriented and play a few shots with ever odd or even club to a target, then play with the swing you have that day do not try to change it prior to the round
Use this shadow drill to get your weight behind the ball and hit higher shots