I think the fundamental reason of not being finisher may come from several reasons: lack of detailed planning (oh, there's an unanticipated obstacle), lack of e

I think the fundamental reason of not being finisher may come from several reasons: lack of detailed planning (oh, there's an unanticipated obstacle), lack of energy to finish things, and little barrier of attention shift. I would say I am not a finisher, but what I am trying to do is reducing these reasons: trying to understand/plan better to the deepest level, sleeping/eating well, getting more satisfaction from finishing things than starting one, and doing smaller things, selectively.