[sciencealert.com]
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"According to the research . . . you need to be very careful about who you choose to seek social support from – as turning to the wrong audience can actually amplify negative feelings of impostorism, not reduce them.
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So who should you turn to? The findings suggest it's helpful to 'reach out' to people who aren't part of the peer group in which you feel like an impostor – such as seeking the counsel and companionship of family, friends, and significant others."
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Well, that is not possible, I do not know of any aliens residing on the planet, ha ha ha
"Impostorism"?? This is a word?
impostor + ism . . . I see no problem with the construction.