Yay! Japanese Translated youtube Account! :DDD (Help please...)

IT'S A PAIN IN MY DAMN ASS!!! I accidentally changed the text on YouTube to Japanese and now I don't know how to change it back. I don't know where to go, what to do or how to do it. IT'S DRIVING ME F*CKING MAD!!! How am I suppose to upload videos or find videos if I can't read it?! Google! Fix your shit!

Does anyone know how to change it back? I've looked at tutorials, but they're like 4 years old. There's no videos on how o change it back so yeah I'm in a pickle.

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