In no situation bullying is a good thing. Bullying is devastating and an unhealthy way of teaching things.
You comment is basically saying "bullying didn't work on you because you were too weak". That's borderline victim shaming and completely insensitive.
Courage has nothing to do with coping with bullying, and you should not need courage for daily interactions with your parents who ought to be your support instead.
You need validation and constructive criticism to grow and bullying is kinda the opposite of this. This validation and constructive criticism will give you the chance to build up self confidence which, in turn, may also you to grow a "thick skin". No need for bullying, which usually takes away your self confidence.