You pay a heavy price every time you are distracted by cheap dopamine activities.
Think about this, the most useless thing you can do when you want to be productive is picking up the phone and scrolling through social media.
While social media is free to use, you pay heavily through your time, attention and bad decision making.
Cheap dopamine hits cause the most frequent damage to one's productivity.
Plus, they are easily transformed into a habit.
So start by making it harder for you to access these cheap dopamine activities and your productivity will definitely improve, instead of focusing on building discipline or an interesting life.