YOU SAID:

i used to go pee in the shower until i cried

INTO JAPANESE

私は泣くまでシャワーでおしっこをしていた

BACK INTO ENGLISH

I was having a pause with a shower until I cried

INTO JAPANESE

私は泣くまでシャワーで一時停止していた

BACK INTO ENGLISH

I was pausing at the shower until I cried

INTO JAPANESE

私は泣くまでシャワーで休んでいた

BACK INTO ENGLISH

I was on a shower until I cried

INTO JAPANESE

私は泣くまでシャワーを浴びていた

BACK INTO ENGLISH

I was taking a shower until I cried

INTO JAPANESE

私は泣くまでシャワーを浴びていた

BACK INTO ENGLISH

I was taking a shower until I cried