YOU SAID:

i never really know who i am in a big crowd

INTO JAPANESE

私は大勢の人が誰なのか本当に知りません

BACK INTO ENGLISH

I really don't know who the many people are

INTO JAPANESE

私は本当に多くの人が誰なのかわからない

BACK INTO ENGLISH

I don't really know who is so many

INTO JAPANESE

私は本当に誰がそんなに多いのかわからない

BACK INTO ENGLISH

I really do not know who is so many

INTO JAPANESE

私は本当に誰がそんなに多いのかわからない

BACK INTO ENGLISH

I really do not know who is so many