Create torque between your torso and waist to unwind your body faster and increase clubhead speed
If your divot is pointing straight and your ball is going right or left then your shots are off target because your clubface is opened or closed at impact
Keep your left heel flat through the swing and to start your downswing by keying on the resistance created by the foot, straightening out the left knee and allowing it to start a chain reaction as it first clears the hips and then allows the upper body to rotate down and through