"Just as a mirror allows you to see your true appearance, other people in your life can help you see beyond your assumptions and blind spots. No matter how confident you are in your abilities, there will come a time when you are uncertain of the next step. In these situations, it’s important to have someone who can help you stay aligned and remind you of what’s truly important.Interesting (and old) idea, though hard to implement.
Are there people in your life who have full permission to speak truth to you about what they see? These kinds of relationships are not easy to cultivate, because you must find people you trust and respect, and who you know will speak out of a genuine concern for your best interests rather than as a way to influence you toward their own. However, if you can identify a few people to play this role for you, it can provide you with a tremendous amount of confidence because you know that others are also watching out for you."
"Know thyself" (Greek: γνῶθι σεαυτόν), -- one of the Delphic maxims and was inscribed in the pronaos (forecourt) of the Temple of Apollo at Delphi