Over many many years I have been criticised for one thing or another.
I take a good look at 'what' it is they are saying.
I go down deep inside and look 'if' they could be right.It takes time to learn how to do this.
By removing yourself and looking as if you were seeing another person.
In this....you have to work fast, before your mind takes over and you 'feel hurt'.
Something like a quick evaluation of what just happened.
It works!
It can save you a lot of grief later, and we become in my opinion a better person.
Even if your not in the wrong, it is a great tool.
If I am wrong, I see it...then fix it.
If I feel I am not wrong, then I am very polite....but always point out the reasons 'why' I believe they are wrong.
NEVER loose your temper...that is a big no-no, if you ever want to have credibility
Confidence to know yourself, act upon it, and not take it personally.
Once people see they have affected you....then you haven't got a leg to stand on.