Failure is a normal part of the entrepreneurial process. However, failure does not necessarily mean that you as a person failed. The success of your entrepreneurial endeavor is always linked to a number of external conditions which you cannot control. Furthermore, you as an entrepreneur need to expose yourself to others by sharing your dream and your vision. This is similar to "letting down your pants and exposing your bear butt, waiting to be spanked". Bear through it. Other people are typically not smarter than you are...