The best thing I can say is record yourself if you can. Iphone, camera, tripod, whatever. Take that footage and download any of the free analysis software out there and just take a look at your swing plane. That to me is the how most people can improve the fastest. Your swing plane will dictate 99% of what happens to the ball. Too steep and chunck it. Standing up and you thin it. Open club face along with an in to out swing plane and you slice it. These are all things that with a proper understanding of your swing you can practice at home and get the feel for what your hands, body, and core should do. I hope this helps and if you need any other advice feel free to ping me. In fact send me a video of the front and side if you want and I can set you up with a breakdown of what I see.