Success will always coincide with failure. When you face a disappointing failure, you will learn that blaming yourself will be more useful than the hassle of looking for other people's mistakes. You will give up your ego, accept the fact that failure can not be separated from your own mistakes.
Although mistakes come from your colleagues or employees, even though you feel that your bigger share brings success than failure, but you only have the power to fix yourself first. Failure will you make introspection material to improve future performance.
While you have a lot to relegate to success, be assured that everything will come to a sweet ending. If you are really, all the things you are struggling for now will come true. At the end of the day you will realize that hard work never makes you a loser.