Dr. Seymour Epstein provides a comprehensive look at why having a high IQ does not necessarily get people farther in life than those with more practical knowledge, and the skill to apply it. Epstein particularly focuses on "constructive thinking" -- i.e., eschewing thoughts and considerations which do not further one's ends -- as a means to achieving positive outcomes.
Good read if you don't think it's possible to control your reaction to events. As is often the case, applying the techniques in practice is easier said than done.