At some point in life, you ought to develop self-confidence that comes from..... self, and not other people appraisal of you. If you made a mistake, you should

At some point in life, you ought to develop self-confidence that comes from..... self, and not other people appraisal of you. If you made a mistake, you should most definitely try harder not to make that same mistake because there is a limit to how many times you can fail in a work environment. No one wants to stand around correcting someone on the same error more than once.