YOU SAID:
killing yourself is fun
INTO JAPANESE
あなた自身を殺すことは楽しいです
BACK INTO ENGLISH
It is fun to kill yourself
INTO JAPANESE
自分を殺すのは楽しい
BACK INTO ENGLISH
It's killing my fun
INTO JAPANESE
それは私の楽しみを殺している
BACK INTO ENGLISH
It is killing my enjoyment
INTO JAPANESE
それは私の楽しみを殺している
BACK INTO ENGLISH
It is killing my enjoyment
That didn't even make that much sense in English.