Straighten your wrists and squeeze your shoulderblades together.
As you break at the knees, stick your butt out and lean over. It looks like you are trying to keep your back upright as though you are doing a high bar squat.
Tense your calves and hamstrings so that everything stays tight when you hit the bottom.
Your knees are collapsing inwards on some of the reps; shove them out as hard as you can.
On the ascent, look down at the floor a few metres in front of you so that your head is in neutral alignment with your (now angled) torso. This should help your hip drive. Consider squatting the other way around in the rack so that you aren't distracted by your reflection in the mirror.
Your shoes are on the way?