Success is not an accident. Sadly, failure is not an accident either. You succeed when you do what other successful people do, over and over, until these behaviors become a habit. Likewise, you fail if you don't do what successful people do. In either case, nature is neutral. Nature does not take sides. Nature doesn't care. What happens to you is simply a matter of law -- the law of cause and effect.
When you are not working deliberately, consciously, and continuously to do, be and have those things that constitute success for you, your default mechanism is at work.
From "No Excuses" by Brian Tracy