Download the app called ubersense - now Technique. Free app, you can video and analyze in super slow motion, draw on the image to show position. Video from behind and the side and then you can look at the recommendations and see if any make sense. From what I see, you are hitting the ball too far out in front of the plate and your head is not looking where the ball makes contact. Put a ball at the back of the plate and keep your head down through the swing. Can not tell from this if you are controlling your elbows or not.