I'm comfortable with tampermonkey scripts and writing my own Javascript, I just can't reasonably comprehend YouTube's generated html structure and constant changes enough to know how to write this myself.What I want is essentially something I can turn on or off that will completely hide videos I've already seen from the suggestions page, the recommended sidebar next to videos and just generally the homepage/the site. It's not that I don't like seeing videos again, it's just the complete burial of suggestions from YouTube of videos I haven't seen among ones I have.Thanks
Is there a way to force YouTube not to show me videos I've already watched?
video;javascript;youtube