Adopt Goldsmith and Brown's simple strategies for gaining self-confidence (try one each day), and in just 21 days, you'll feel happier and more at ease.

戈德史密斯和布朗就重获自信给了12个简单的攻略，每天做一条，只要21天，你就会变得更快乐、更惬意。

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"My father always advocated gaining self-confidence outside the family business because once you're in, you never know if you're doing a good job or if people are just being nice to you, " he says.

FORBES: Saying "No Thanks" To Dad & Co.