The most valuable skill or talent that you could ever develop is that of directing your thoughts toward what you want—to be adept at quickly evaluating all situations and then quickly coming to the conclusion of what you most want—and then giving your undivided attention to that. There is a tremendous skill in deliberately directing your own thoughts that will yield results that cannot be compared with results that mere action can provide.
How do you do this? By knowing how you feel at all times and moving towards the best feelings your can reach. Managing your emotions is the first step in moving towards what you want.