Being consistent in planning and finishing the tasks we put ourselves is the strongest weapon in one's arsenal, in my opinion.

without consistenc we can't grow a habit, and I've noticed most people see something fresh and new that can help them in life, they start doing it for some time, see that it works and after they get the result... they stop. As if, since they have reached the positive effect once, it will stay there forever, but they instead start doing what they have done previously - wasting and being less productive.

So, consistency in all you wish to do to make your own life the way you want it to be. :)