Deadlift Form Check

I’ve only been training relatively serious now for about 3 months. I know that my form in the video is poor and that is why I’ve joined this site to get feedback from others. As you can see the bar comes up quite staggered, which may be due to a slight pain in my right knee at the time? I am also struggling on the lockout of the lift, where I feel like I completely neglect my glutes and hamstrings by sitting back and jerking the bar up my thighs. In the video I am working off a 7 inch platform, I know that the amount of small plates I have on the bar is stupid but they were all I had access too. Any thoughts on my technique would be appreciated. Cheers!