YOU SAID:
im so stupid its unbelievable
INTO JAPANESE
私はとても愚かなその信じられない
BACK INTO ENGLISH
I can not believe that I'm so stupid
INTO JAPANESE
私はそんなに馬鹿だとは信じられない
BACK INTO ENGLISH
I can not believe I am such a fool
INTO JAPANESE
私はそんなに馬鹿だとは信じられない
BACK INTO ENGLISH
I can not believe I am such a fool
You've done this before, haven't you.