If you fail in your mission, again and again, none of those failures will be called a failure unless you accept that you have failed.

Actually, you did not fail; you were trying to find and walk on the path that could lead you to your destination. This thought will prompt you to try again and again. Finally, you will walk on the path that will directly lead you to your destination, and that experience of success will help you achieve other missions in easier and better ways.