YOU SAID:

I am so stupid that a monkey from California is smarter than me.

INTO JAPANESE

私はとても愚かなので、カリフォルニアの猿は私より頭がいい。

BACK INTO ENGLISH

I'm so stupid that California monkeys are smarter than me.

INTO JAPANESE

私はとても愚かなので、カリフォルニアのサルは私より頭がいい。

BACK INTO ENGLISH

I'm so stupid that California monkeys are smarter than I am.

INTO JAPANESE

私はとても愚かなので、カリフォルニアのサルは私より頭がいい。

BACK INTO ENGLISH

I'm so stupid that California monkeys are smarter than I am.