If you expect to fail, you will fail. It's a self-fulfilling prophecy.

你如果预期失败，就会失败。这是一种自我应验的预测。

《牛津词典》

Fear of failure can become a self-fulfilling prophecy.

害怕失败可能真会导致失败。

《柯林斯英汉双解大词典》

The "don'ts" can be self-fulfilling because your mind responds to pictures.

这种“不能”之所以会自行实现，是因为你的大脑响应这些“不能”的画面。

youdao

But he will warn that American downplaying international efforts could prove a self-fulfilling prophecy.

VOA: standard.2009.09.28

And psychologists have coined a term, talk about self-fulfilling prophesies, and the claim here more specifically is what's known as "the Pygmalion effect."

心理学家造了一个新术语，来讨论这种自我实现的预言，准确来说这个现象就是,皮格马利翁效应“

耶鲁公开课 - 心理学导论课程节选

The Pygmalion effect that we are going to talk about next week or the week after, shows how teachers' expectations are self-fulfilling prophecies.

我们下周或再下周会探讨,皮格马利翁效应，说明为什么教师的期望就是自我实现的预言。

哈佛公开课 - 幸福课课程节选

The link between crime and drugs stems largely from the fact that these things are illegal, it is a farcical self fulfilling prophecy.

BBC: Your view on Labour: The first comments we received

With concern about earnings and more companies issuing profit warnings - the media's constant reference to recession may turn out to be a self fulfilling prophecy.

BBC: Media fuel fears of US recession

There's a self fulfilling prophecy there.

BBC: More