The key to a bad swing is a bad setup, so making sure you’re going through the proper measures prior to moving the club is extremely important. Shanon Hoyt explains the three main components to setting up properly before you swing: grip, stance and posture.
Grip your fingers around the club before gripping with your palm. If gripped with the palm first, there will be too much tension between your hand and the club, resulting in loss of control throughout your swing.
Your feet should be placed the width of your shoulders so that they are a bit wider than your hips. Your weight should be distributed evenly between your feet and your knees should be bent slightly, just enough to make sure they turn with the rest of your body during your swing.
Tilt your hips by keeping your upper body and torso straight. While moving your hips backward, your shoulders come naturally forward.
These steps should ensure proper balance, which should be maintained throughout your swing.