When is the Right Time?

Decision making is such a difficult process so many things to be looked @ before one can take the final call, I know this can be broken into a streamlined step by step process & there is much written on this subject but not everyone can be a highly disciplined Process oriented decision maker like me I am more Instinctive & spontaneous, I always get stuck with one real question is it the right time? I have tried to assess many of my decisions & realized that most of the mistakes I made were because of the wrong timing -wonder if there is a way of knowing when is the right time in any decision....