What is the difference between confidence and over confidence?

Confidence means I'm the best.

Overconfidence means only I'm the best.

Confidence means we know that we can do the work at our best level.

Overconfidence is only I can do this work at the best level.

I can solve that problem means you are Confident.

Only I can solve that problem means you are Over-Confident.

CONFIDENCE: It is a reality. He wants to improve him and to be perfect.

OVERCONFIDENCE: It is an illusion. He thought that he is improved one.

I can do this task is confidence.

No, I can do this task other than me is overconfidence.

According to me;

Confidence is the meaningful key to life.

Overconfidence is the meaningless key of life.

I can do it. Is a confidence.

Only I can do it is overconfidence.

I can do this task is confidence.

Only I can do this task is overconfidence.

Confidence means I can do it at my best level.

Overconfidence means only I can do it at my best level.

Confidence means capabilities to do something good or you can see something good in every condition. And believed on ourself.

But overconfidence means you think that only I can do that work nobody can do it better than me. Or we can say a person who doesn't have proper knowledge still he/ she think that they are best and no one can replace them. It is only a sign of overconfidence so we should avoid this type of thinking and thought process instead of it we can say that yes we have knowledge but we also have to improve it day by day to enhance our skills and ability or should appreciate others also to achieve well in their life never underestimate yourself as well as others.

That's all I think.

Thank you.