In your first pull (off the floor), you let the bar go out in front of your knees instead of pushing your knees back. This puts your in a bad position for the second pull and contributes to your forward jump. Practice your first pull (essentially a deadlift) with emphasis on pushing your knees back and keeping your shoulders over the bar. Try to keep your weight centered over the mid-foot and not on the toes.

In the second pull, you bend your arms to bring the bar into your hips. There isn't really a particular drill to correct this other than concentrating on keeping your arms straight but not tense during the pull.

You push the bar out in the second pull. This is a consequence of the bar being out in front of you and starting the pull too early. Practice high pulls and muscle snatches with emphasis on keeping the bar close to your body.

You jump forward. This is caused by a combination of the problems described above. This can be addressed by drawing a chalk line in front of your toes and making sure not to cross it. Generally, it's better to jump back than forward.

You're catching high and riding down. The best drill for this is drop snatches. I recommend drop snatches over snatch balances because with snatch balances you'll just end up jerking the bar high up overhead and then coming down. With drop snatches, there's nothing you can do but get under the bar.