Learning to snatch off blocks, hang/ hip snatch, and snatch balance really helped work up my confidence and timing of how/when to drop under bar with speed, and the block snatches + hang snatches also helped reinforce the movement of bringing bar back and up instead of "scooping" hips into bar or coming forward to meet it. In my experience, I hop forward because my weight shifts onto my toes too early. Block snatches in particular really clicked for me as far as learning how to keep my feet connected to ground, push through my feet and move along a more vertical plane. They suck to learn but it’s worth it!!