"The important thing is to strive towards a goal which is not immediately visible. That goal is not the concern of the mind, but of the spirit." ~Antoine de Saint-Exupéry, Flight to Arras, 1942, translated from French by Lewis Galantière
The most important role any leader has is to dream and to have vision. Without this focus, all things become stagnant and uninteresting. The second most important role is to move towards it no matter how tedious and unpleasant some of the work or effort may be.
Related: Vision Planning for Leaders
"Goals are dreams with deadlines." ~Diana Scharf Hunt
Here are some general practices that keep you moving and flowing toward your vision, the dream.
If you dread doing it - make it the first thing you do in the morning and get it off your list
If you keep forgetting to do it - make a to-do list/reminder and then do it
If you second-guess yourself - go back to your first answer and get it done
If you want to leave it to later - move up to...