Failure occurs because of two reasons;
1. Doing things without thinking about them.... How often do you do something without thinking about it and end up regretting it? If you would have stepped back to think about it for a minute or two think what the positive results would of/could of been. Taking that extra minute to think about what you are doing can make or break you. Do you really want to take that chance?
2. Thinking about things without doing them... How often have you had a great idea or concept but did not take the actions necessary to make it happen? Just think about where you would/could be in life if you went after that/those thoughts.
So don't act before you think yet don't think without acting upon it. Think of your wants, goals and desires and take the best action steps towards those wants, goals and desires.