Nice shirt, Simen.
Get your hands on the bar. For some reason a lot of people make this mistake and think that because you don't wrap your thumb around it, that the bar isn't supposed to be in your hands. It is. Position it higher in your hands so you can get your fingers around the bar and help stabilize it.
You have a bit of knee slide that causes some forward bar path issues. Get your knee position set a little sooner, and then make the rest of the way to depth with your hips. On the way up, make sure to stay in your hips; drive them up the whole way, don't get out of your hips part way through your ascent.