There's a difference between not bothering what others think about you, and not bothering what others tell you when it is concerning something that you ought to change.

It is definitely great that you are confident and nothing brings you down but the line is drawn when your confidence gets too high and turns into arrogance.

When people tell you to change, you at least LISTEN and THINK about it. There isn't no reason why someone comes and tells you that you ough to do this and that.

You don't listen only when you ask for their opinion because that is plain impoliteness and arrogance.When people tell you what possible-faults they see in you, you at least say something, or try to clarify. You don't give a one syllable answer like "oh". It really pisses the other party off, damn it.