I'm sure that somebody more knowledgable than I am will give you a much better response, but here is my attempt to help, and this is what I saw;
In your start position, your shoulders are behind the bar and not over it, and by the looks of it (looking at the bar's tracking), this is making the bar have to come away from the body just to clear the knees, and not allowing it to be swept in at the point of seperation (as it should). I believe that this is probably the main reason that you jump forward to catch the bar (because you're chasing it, due to the bar being too far forward, and thus your combined COG being too far forward too).
It also looks as though you break the bar from the floor with your hips below parallel. This is a weak position, and it should be just above parallel as this happens. Raising the hips will probably also automatically put your shoulders over the bar too.
Looks from the dramatic change of direction during the second pull as if you're also banging the bar with your hips (in fact I'd put on my month's wage that you do), which is also causing the bar to swing from your body during the third pull. You should be bringing the bar to the hips and explode up, and not the hips to the bar to bump it up (because it doesn't bump it up, but out and up, just watch the bar path. I used to have the same issue). Also looks as if you're not rotating your elbows out to the side, which helps you to keep the bar close.
There may be more, but they're my main points that I picked up on, remember baby steps. I hope this helps, and I'm sure comebody else will give you a better response also.
Courage does not always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow' - Mary Anne Radmacher