Tamu spent most nights sleeping in school playgrounds.
The moment that pulled her away from living on the street was waking up in a stranger's home in Manurewa with no money and only the clothes she was wearing.
"I just woke up one morning and I realised it wasn't the life that I wanted. So I walked the train track home from Manurewa to Morningside in central Auckland, and as I walked I remember I thought to myself 'I'm going to change this, I'm going to make this right'.
"And I did. In the end the fact that my parents forgave me and I wanted to be forgiven ... that was what turned things around."
"We've all got our own personal struggles - it's what you do about it that counts."
For her Fulbright residency Tamu will be based for three months at the University of Hawaii at Manoa.
She will work on a second book of poetry and prose, which will include exploring the life of Princess Ka'iulani, a 19th century Hawaiian princess of Scottish and Hawaiian heritage, who was heir to the throne before the monarchy was overthrown.
Tamu is also of mixed heritage with a Samoan mother and Pakeha father, as well as a great grandmother who was half Scottish and half Tongan.
"When I found about about Ka'iulani I thought 'Wow, there's this real synergy in terms of the time in which she lived and also her mixed cultural heritage."
Tamu is the tenth recipient of the Fulbright-Creative residency, which was established in 2004.