Science writer Olga Khazan didn’t really like herself. A self-described neurotic, she tended to fixate on the negative. She assumed she’d always be this way, but then she came across research showing that personality is something you can change. In today's episode, Olga chronicles her year-long journey to "fix" her personality, and invites us to consider whether it’s truly possible to change who we are.

Try the personality test that Olga talks about here.

Sign up for Maya’s new newsletter, where she shares the results of *her* personality test (!) here.

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Extreme Makeover: Personality Edition