YOU SAID:
my friend is not good and shouldn't exist anymore, I don't like him
INTO JAPANESE
私の友達は良くなくてもう存在しないはずです、私は彼が好きではありません
BACK INTO ENGLISH
My friend is not good and should no longer exist, i don't like him
INTO JAPANESE
私の友人は良くなく、もう存在しないはずです、私は彼が好きではありません
BACK INTO ENGLISH
My friend is not good and should no longer exist, i don't like him
That didn't even make that much sense in English.