YOU SAID:

I only eat potatoes on Wednesdays because of my very faschwata religion.

INTO JAPANESE

私は水曜日にジャガイモを食べるだけです。

BACK INTO ENGLISH

I only eat potatoes on Wednesday.

INTO JAPANESE

私は水曜日にジャガイモしか食べません。

BACK INTO ENGLISH

I only eat potatoes on Wednesday.