YOU SAID:
Can’t believe I was such a fool
INTO JAPANESE
自分がこんなに愚かだったなんて信じられない
BACK INTO ENGLISH
I can't believe I was so stupid
INTO JAPANESE
自分がこんなに愚かだったなんて信じられない
BACK INTO ENGLISH
I can't believe I was so stupid
That didn't even make that much sense in English.