You might want to read up on (or find some videos on the topic, haha) dopamine addiction. It’s not a real term, per se, but it will get you results about the problem you have.

I think that watching the videos 1) distracts you from reality and 2) gives you a little reward, either though little dopamine spikes (e.g. a funny segment, or some tidbit of knowledge), or through a false feeling of accomplishment.

Personally, I would recommend whittling down a short list of favorite YouTubers. Set aside a few afternoons per week to watch the videos, and try to pare the time back further over the course of months. Focus on real-world hobbies and interests. Leave your phone at home, go to a coffee shop, and read a book for an hour.

On the subject of reading and attention spans (which is often a core issue here), I read about a study a long time ago. They had students read from a book every night. They were to read for as long as they felt like it, and then read one more page. At the end of the study, the students reported that they were reading far more per sitting, and that their attention span improved.

There’s also a lot of recent information out there about dopamine resets, where people cut out technology and take walks while focusing on the world around them. This would probably benefit you, too.