I'm increasingly finding that I have to actively struggle to take ownership of my time and attention. Without an active, conscious, effort to reclaim your mental resources you WILL be caught up in the never-ending cycle of dopamine-dependency to novel information or visual stimulation. Your attention is a valuable resource and many companies have spent billions on figuring out how to farm it.
Some of my more effective methods have included: strict site-blocking via OpenDNS, apps to implement time based blocking of information-novelty sites (Twitter, HN, reddit, instagram, CNN), almost complete disabling of notifications, with the exception of text messages and async work chat during business hours.
All of these methods, I can undo, but it prevents or at least slows down the automatic, reflexive app/site opening when my reptile brain craves a dopamine hit.