YOU SAID:
I took a shower when i was six
INTO JAPANESE
私は6歳の時にシャワーを浴びた
BACK INTO ENGLISH
I took a shower when I was six years old.
INTO JAPANESE
私は6歳の時にシャワーを浴びた。
BACK INTO ENGLISH
I took a shower when I was six years old.
You've done this before, haven't you.