She wanted to tell her story. She wasn't looking for sympathy, but she did want to change minds - to educate people about the impacts of addiction, PTSD, mental health and domestic violence.
It's a reality she knows all too well.
Holly's childhood in Western Australia looked idyllic from the outside. But in reality, it was dysfunctional. There was sexual abuse from a relative, alcoholism and violence. Then drugs entered the picture.
"I was 12 or 13 when I first smoked pot. I was then 15 when I tried heroin. I knew a lot of people in my house were using it, and I figured it couldn't be that bad. I kept asking mum again and again if I could try and snort a bit and the answer was always no. Until it wasn't," says Holly.
"My mother and I didn't really have a mother-daughter relationship, we were more like best friends. Later looking back on it as an adult and looking back on that environment, it was totally wrong. But at the time, I thought it was great."
Watch: Jamie Lee Curtis reflections on a life nearly lost to addiction. Post continues below.