It's not easy to stop yourself just wading in when you hear something you disagree with but as with any situation it is better to take a breath and maybe a step backwards to assess what is actually being said – the feedback may not always be as stratightforward as you might at first think…
The first thing to do is nothing. Don’t decide whether or not you agree with the feedback…yet. This isn’t easy. But you need to give yourself time to more clearly understand the feedback before you accept or reject it.