YOU SAID:
I have made a huge mistake
INTO JAPANESE
私は大きな間違いを犯しました
BACK INTO ENGLISH
I made a big mistake
INTO JAPANESE
私が間違っていました。
BACK INTO ENGLISH
My mistake.
INTO JAPANESE
僕のミスだった。
BACK INTO ENGLISH
My mistake.
Yes! You've got it man! You've got it