If you want to master anything, you have to practice it, think about it, dream about it, talk about it, and do all of this at a pace and a level of involvement that you can maintain over time. This is true if you want to become a competent businessperson, doctor, writer, artist, or scientist. It is true if you want to develop satisfying relationships. It is true if you want to become a good fisherman.
The same holds true if you want to live a happy and gratifying life.
I could tell you lots of ways that you could do short sprints that would be fun in the moment. That may be worth doing, as long as it is in the context of your values and responsibilities. But doing this alone is like eating fruits and vegetables one day, when your overall diet is regularly full of fats and too much meat. Or doing a good deed once in a while, when you normally are guided by a harmful morality.