YOU SAID:
I am fed up and I want to kill myself
INTO JAPANESE
私はうんざりしていて自殺したい
BACK INTO ENGLISH
I'm sick and want to commit suicide
INTO JAPANESE
病気で自殺したい
BACK INTO ENGLISH
I want to commit suicide due to illness
INTO JAPANESE
病気で自殺したい
BACK INTO ENGLISH
I want to commit suicide due to illness
That didn't even make that much sense in English.