When we are doing something that we like?
When we are doing something that we know?
When we are doing something that we understand?
Actually the only answer is we should be confident anytime anywhere?
How about if we unconsciously keep on stay on the point which is wrong?
Is that the situation where we should not be confident?
My answer is not, that is not the problem with we are confident or unconfident?
In my opinion we should be someone open mind which not only stay on own opinion and avoid to accept others' opinion.
We should always remember that we are only human being so we will make mistake anyway.