Yes, there are few concrete pieces of advice to tackle the "internal triggers" of distraction. These are to be found in ourself and any tricks, like turning off all of the notifications, will only address the surface of the problem. Any concrete advice would risk here to conceal the truth that that hard word is not easy.
I like the path proposed by the article.
* searching in oneself for the deep obstacles toward our goals. boredom? loneliness? fatigue? uncertainty?
* clarifying our priorities into a concrete daily schedule;
* imposing ourselves a routine on what matters
* and even using pacts with ourselves.
Looking closely at my own current habits, this helped me to better understand what I already do well and what I need to improve.