"Mindless browsing" is just dopamine addiction, happens with phone notifications, porn and many other stimulus, a good video about it at https://www.youtube.com/watch?v=9QiE-M1LrZk
The advice I got is that you need to take a very hard look at what things in your life recharge you, and prioritize the ones that work well over the ones that are minor or neutral.
Your initial list will contain a bunch of things that are really just playing for time. They don't recharge you, they just keep you still long enough for you to recuperate a little bit.
One of my big ones is naps, but I'm still wrestling with the idea that going to sleep is an activity instead of the absence of (nearly) all activity.
