When you are surrounded by people fixated on drugs, alcohol and violence, there are only two things you can do - join them, or turn away.
For Carlos Ulberg, the decision to go against his friends was not easy, but it was one that saved his life.
"When I was in primary and intermediate, I was pretty much travelling from foster home to foster home all around Auckland.
"Because of the kind of people that were in the homes, I was introduced to a lot of drugs and alcohol and stuff like that.
"I was pretty much living on the street because we could."