If the weight is light enough that you can glance at the side mirror (20 seconds into the video) and take a step with the weight in your hands, it is too light to be informative as a form check.
51 seconds into the video, you lower yourself to the bar, glance sideways again (which pulls you out of alignment and screws up your breathing and bracing), and walk around with the bar some more after pulling the rep.
Please go read this thread:
and this thread
All of the advice given applies to you.
Also, deadlift form videos with 135 for 10 disjointed reps are basically meaningless. I’ve been banging this drum for awhile, but any form-check video shot with less than ~80% of your 1RM tells the viewer almost nothing about how you look with weights that you’ll have to strain to hit.