After Failure

With a string of failures over the past couple of years, I've begun to think that what one does after failure is more important than what one does after success.  Failure is a time for reflection on what to do better.  One must be brutally honest with oneself.  Ideally, one should know whether to quit or not.  Telling the difference is one of life's greatest challenges.  Above all, however, one must make a full decision.  Quitting a project, a job, a career comes with benefits and troubles.  Trying again comes with its own difficulties.  But deciding the in-between is the most treacherous, where different forces will pull you in multiple directions until you shatter into many pieces.  What do you do after failure?