YOU SAID:
I am very foolish to think I am foolish
INTO JAPANESE
私は自分が愚かだと思うのはとても愚かです
BACK INTO ENGLISH
I'm so stupid to think I'm stupid
INTO JAPANESE
私は私が愚かだと思うのはとても愚かです
BACK INTO ENGLISH
I'm so stupid to think I'm stupid
You've done this before, haven't you.