IMHO the best way to handle a negative feedback is to try to learn what was wrong and why you made mistake in order to improve and don't repeat them again and again.
Everybody can make mistake, the difference between a mediocre professional and a great professional is that the great will not repeat the mistakes.
Remove any kind of personal attack, analyze your actions and think about how you may improve to avoid making mistakes and getting negative feedbacks again.
Remove any kind of personal attack, analyze your actions and think about how you may improve to avoid making mistakes and getting negative feedbacks again.