Turn your back to the target on a 45-degree angle and just swing your arms. Your relaxed arms naturally swing shallower and you learn the feeling of an in-to-out swing. Your new swing path and stronger grip will allow you to hit high draws.
Try extra length, a softer-flex shaft and a more upright lie to change your big slice into a tight little cut. Get yourself an offset, draw-bias clubhead, which has extra weight in the heel to promote a right-to-left flight. A lower-spinning ball also reduces sidespin. Teeing the ball higher can increase launch angle and force you to swing more on plane.