YOU SAID:

I have too much cracker in my mouth

INTO JAPANESE

私は自分の口にクラッカーが多すぎる

BACK INTO ENGLISH

I have too many crackers in my mouth

INTO JAPANESE

私は私の口の中にあまりにも多くのクラッカーを持っている

BACK INTO ENGLISH

I have too many crackers in my mouth