Start with your break-out.
Right now, you're breaking with your knees slightly in front of the bar, and using your quad musces to break the weight up.
It sets you up to squat too much on your toes, which puts a ton of strain on the knees.
Instead, set your feet slightly wider, knees under the bar, butt slightly behind it. With your center gravity located on your heels and the outsides of your feet, flex your butt and hamstrings hard to break the weight.
This helps bring the butt and hams into play more. Bigger, stronger muscle groups to help you move the weight and to take some stress off of the knees.