Think about your future self. What do you want to be able to tell a colleague, or junior, what you've learned from this failure in ten years? Focus on that. There's a lot of emotion in the now but that won't stick. Focus on the lessons. You've played the hand you were dealt. Was it a lousy hand or did you play lousily, or both? Everyone makes lots of mistakes. Admitting them and learning from them that's what helps you move on.