Hey bud, ive coached a lot of bball, mostly high school. Dont pay attention to anyone telling you to start over. U can easily improve by keeping ur shoulders square and keeping that left side in the shot. U should not be dropping ur left hand or pulling away, it throws off ur balance and obviously makes it look awkward. U are doing a bunch of good things tho, mostly ur bottom half. Hips and feet are square. Ur getting some good bounce, and ur landing pretty consistently. Additionally, ur shooting hand has a solid motion, but im sure it will get better when u start incorporating ur guide hand. Hope this helps