What is the difference between confidence and over confidence?

According to me confidence is - I can do it by my hard work.

Overconfidence -- I can do it very easily.

Confidence : I will achieve the best.

Overconfidence : Only I will achieve, others can not.

Confident is making life good again.

The downfall came through being overconfident.

Confident is I can achieve my dream.

Overconfident is I can achieve any things that is possible but my view is not possible for simple person.

Confidence is to do hard work and be calm.

Overconfidence is thinking as over brave.

Confidence means you are having courage to do it but overconfident means having attitude in yourself.

Confidence means confidence on my skills and practice that I have done.

Over confidence means I will always right at my each and every decision.

Confidence. I can do it.

Over confidence. Only I can do it.

Confidence is being comfortable in your own skin and expressing yourself without feeling insecure or nervous. It comes when one knows one's strengths as well as faults and accepts them to improve oneself.

Overconfidence is when a person 'believes' that he/she is right every single time and that there's nothing the others 'need' do, but follow him/her happily.

If the interviewer says something like, "If you can do it, there are a hundred others who can do it too. Why should we choose you and not them?".

If you say because I can do it better than others, the interviewer might twist your reply to mean that you are over-confident.

What to say in such situations? Maybe you can say "Because I'm special! You will find it during my work and never regret your choice".

Confidence is staying calm and cool and being able to do whatever task is being assigned in a proper way.

It is being confident about oneself and having the belief of being able to do anything.

Over confidence is when someone brags about being confident in am excessive manner and it does not always lead to good results and can be self destructive.