Try moving the bar a bit closer to you in the start position and get your head up with your eyes straight ahead. When you break the bar, thing of pushing w the legs like a squat rather than lifting the bar directly.
Stay on your heels as long as you can during the pull and wait as long as possible to initiate the final upward explosion. That will help you stay back/balanced and over the bar properly and allow the bar to come up higher on the thighs.
Setup for snatch and clean are essentially the same, you will just have smaller hip and knee angles in the snatch because of the wider grip.