我意识到了自己的错误，觉得自己是个傻瓜。

I felt a fool when I realized my mistake.

《牛津词典》

和约翰谈话之后，我意识到了自己的错误。

Having talked with John, I realized my mistake.

youdao

我意识到了自己的错误，后来我花了很多年才摆脱债务的束缚。

And then, once I'd recognized the error of my ways, it took years to break the chains that bound me.

youdao