YOU SAID:
I’m drinking my 80 years old mom milk
INTO JAPANESE
私は80歳のママミルクを飲んでいます。
BACK INTO ENGLISH
I am an 80-year-old mom drinking milk.
INTO JAPANESE
私は牛乳を飲んでいる80歳のお母さんです。
BACK INTO ENGLISH
I am an 80-year-old mother who drinks milk.
INTO JAPANESE
私は牛乳を飲む80歳の母親です。
BACK INTO ENGLISH
I am an 80-year-old mother who drinks milk.
That didn't even make that much sense in English.