You can reduce errors by mastering the proper follow through. You can also improve your control by focusing on your shot follow through.
Backswing video links: The concept: https://youtu.be/ESZg7eG9lzI
Drill and exercises: https://youtu.be/u13UELEL4M0
Focus on using your shoulder for strokes. Minimize the wrist and take the elbow completely out of your stroke. Follow through to where you want the ball to go and watch your game improve.
Tony Roig 
In2Pickle Player Development
Tony@In2Pickle.com
Visit us at www.In2Pickle.com