Okay
I will ask this one more time.

How old are you in American

16

The Korean age system is three years added to the American, you are 17 in the Korean so you are about 14

Where the hell did you get 3 years added to American

It's 1 or at most 2

Korea adds one year because they consider the first 9 months to be the baby’s first year, so they are born at age 1

Google is A liar