In your start, get the bar a bit farther forward - over the base of your toes. and get your arms vertical. When you leave the platform, move BACKWARDS and up - don't try to lift straight up.
Right now the bar is behind your shoulders too far and over the feet too far, and you're trying to lift it straight up - this means that it has to loop forward around your knees and your weight is on your toes. if youshift back as you break the bar, your weight will move onto your heels and the bar can move back and up.
that will also help the bump and forward jump. just get back on your heels and stay there - don't ever intentionally move onto your toes - that will happen naturally if you drive the fucking shit out of your legs, i.e. jump.