Dreams of making a mistake signify that you are grappling you’re your own -judgments, criticisms and issues of perfectionism and forgiveness for having made a mistake, or of having been “wronged”. Your dream may be reassuring you that there is really no such thing as a mistake, as long as you learn from what you do and keep moving forward.... Strangest Dream Explanations
Vision: Making a mistake—or recognizing that you have made a mistake: don’t let others bamboozle you.
Depth Psychology: Dreaming about a mistake reveals a fear of being disappointed or lied to. This dream is a warning: you are either being lied to and deceived—or you are lying and deceiving yourself!... Dreamers Dictionary