YOU SAID:

I don't care much about that

INTO JAPANESE

そんなことはあまり気にしない

BACK INTO ENGLISH

I don't really care

INTO JAPANESE

あまり気にしない

BACK INTO ENGLISH

don't really care

INTO JAPANESE

あまり気にしないでください

BACK INTO ENGLISH

don't worry too much

INTO JAPANESE

あまり心配しないでください

BACK INTO ENGLISH

don't worry too much