I've gone over everything in my head time and time again and I can't shake the feeling that, somehow, everything got mixed up.

我一次又一次地检查脑海中的每件事，就是无法摆脱那种，怎么说呢，所有东西混杂到一起的感觉。

youdao

When you get it mixed up you invert it, which of course makes you get everything wrong.

当你搞混的时候，你弄反了，当然就都错了。

youdao

Alas, you got everything else mixed up.

ECONOMIST: Privacy's end?

At least until I took my fork and mixed everything up, as one is supposed to do before eating it.

BBC: The quest for the perfect pad Thai