YOU SAID:
my world has gone dark
INTO JAPANESE
私の世界は暗くなってしまった
BACK INTO ENGLISH
My world has become dark
INTO JAPANESE
私の世界は暗くなりました
BACK INTO ENGLISH
My world got dark
INTO JAPANESE
私の世界は暗くなりました
BACK INTO ENGLISH
My world got dark
Well done, yes, well done!