Using will power

In talking with my wife (Diamond Scholar) about my approach to creating results, I find that I will resort to using will power to get things done, often to great effect, until I run out of that mental energy. From there, I often will then cease to create any of the results that I want until things come to a head and I am able to reset the will power dial.
How do I break this cycle? And what is the alternative to using Will Power to create results?