YOU SAID:
You must do the things you think you cannot do.
INTO JAPANESE
あなたがすることができないと思うことをしなければなりません。
BACK INTO ENGLISH
You must do what you think you can not do.
INTO JAPANESE
あなたがすることができないと思うことをしなければなりません。
BACK INTO ENGLISH
You must do what you think you can not do.
That didn't even make that much sense in English.