YOU SAID:

I have been drinking oboy every morning for eighteen years

INTO JAPANESE

私は毎朝18歳の間にお酒を飲んでいます

BACK INTO ENGLISH

I am drinking every morning at the age of 18

INTO JAPANESE

私は18歳で毎朝飲んでいます

BACK INTO ENGLISH

I am 18 years old and I am drinking every morning.

INTO JAPANESE

私は18歳で、毎朝飲んでいます。

BACK INTO ENGLISH

I am 18 years old and I am drinking every morning.