When something distracts you, don’t waste your effort trying to manage it. Instead, do yourself a favor and get rid of it completely. For example, if social media apps on your phone distract you, remove them from your phone. Don’t bother setting time limits, no one is so strong to resist the urge. And if you want to lose weight, stop buying junk food. Don’t allow snacks in your house.
Most productivity advice is all about management. You could read less productivity advice, and get more done, if you just cut the things that keep you from being productive.
Should productivity advice then become how to manage the other people when you no longer match their expectations on how you should be operating?