What are some toxic hobbies that you want to get rid of?

For context, I am the kind of person who loves to study but forgets it quickly after some time and is addicted to watching YT shorts and Fb videos.

Whenever I study, I usually gets distracted with my phone and essentially use it and totally forget that I was studying. I really hate myself when I do that and I am just wondering if there are people who do the same and ask how did they resolve it.