Setup a training station with three golf tees angled back-left to front-right. The center tee is the height for your golf ball when using a driver and the outer tees are slightly higher.
Setup to the ball using the central tee. The visual of the three tees in a line will guide you to proper impact.
Swing the club so that you hit all three tees. When you are successful, you would have hit the ball with an inside path, producing a natural draw.