I'm gonna go against the grain and say this is the only change I've seen them make in a long time that I'm glad to see. I often read comments while watching the video, especially now that dislikes are gone to quickly tell if a video is real or not, or if there's anything else to be wary of. I never scroll video suggestions until after I'm done watching the video, to decide what to watch next. This layout just makes more sense for that.

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I'm still learning how myself, but something that's helped so far is repeatedly telling myself that the only way they can hurt me now is if I'm thinking about them.
It's the only weapon people have left once they're out of your life. If you keep being angry about something that's long over, you're giving them the power to keep hurting you, free of any effort on their part, and they don't deserve that luxury.