YOU SAID:

im going to cry into my pillow

INTO JAPANESE

私の枕に泣くつもりですim

BACK INTO ENGLISH

I'm going to cry on my pillow im

INTO JAPANESE

私は私の枕imで泣くつもりです

BACK INTO ENGLISH

I am going to cry with my pillow im

INTO JAPANESE

私は私の枕imと一緒に泣くつもりです

BACK INTO ENGLISH

I am going to cry with my pillow im