Turning off the machine feeding stuff to my brain really has helped me. I feel better, cleaner and less disturbed/distracted.
Now I am actually considering leaving YouTube as well, although it has been such a lovely place at times, since I notice it is deteriorating my health.
I recommend you try it; nothing has to be deleted. It's simply removing the habit of using it. It does make life a bit better :)
Oh, and a good first step is to install the extension `News Feed Eradicator`. This is how I got started. I run it on everything.