Celeste O'Connor was 17 in Wetlands when they played the character 'Amy'.
That was over 7 years ago in 2017.
This was their first recorded movie acting credit (although may not technically be their first actual acting role).
Today they is 25, and has starred in 8 movies in total, 7 of those since Wetlands was released.
In Wetlands, I think Celeste O'Connor looks: