I use an app called Jomo to block YouTube, as well as about 10 other distracting applications. It runs on every device I have and makes it very challenging to use the app when I feel the urge to. For a long time I convinced myself that I needed to keep some access to YouTube because there is obviously some meaningful content on the platform. After having it completely blocked for a few months I have come to realize that there is nothing on the platform that is absolutely essential for me to be able to view, and that the downside of getting distracted was not at all worth it.