What could be obstructing me from taking action?

From time to time I gain insight into what it is I must do to feel better about myself and how I must live my life to be happier. It seems that I am unable to keep these thoughts in the forefront of my mind. It’s as though I have a problem concentrating or focusing long enough on these thoughts to insight an action that would propel me to the realization or manifestation of the desires the thoughts instill. I know what it is I must do but somehow fail to do it. It is as if there is some malfunction between having the knowledge and acting on that information. What could be obstructing me from taking action?

After reading the aforementioned question where you undoubtedly propose that there might be an imminent malfunction between having the knowledge and acting on information on the subject, I've come to a conclusion that...

Perhaps you're giving it too much thought. Just do it.

Like the Nike slogan...