When making a decision of minor importance, I have always found it advantageous to consider all the pros and cons. In vital matters, however, such as the choice of a mate or a profession, the decision should come from the unconscious, from somewhere within ourselves. In the important decisions of personal life, we should be governed, I think, by the deep inner needs of our nature.
One thing that helps is to give myself permission to write badly. I tell myself that I'm going to do my five or 10 pages no matter what, and that I can always tear them up the following morning if I want. I'll have lost nothing-writing and tearing up five pages would leave me no further behind than if I took the day off.