Your failure may prove to be an asset, provided you know why you failed.
There are a few occasions during our brief time on earth when most of us experience great flashes of insight, great moments of truth that forever change the course of our lives. Most of those experiences result from spectacular failures, not from outstanding successes. It is from the failures that so chagrined and dismayed us that we learn the most lasting lessons. When you are the unwilling recipient of a great moment of truth, extract the useful lessons and then put the entire episode behind you. Learn from your failures, forget about them, and move on to better things.