She shared: "I've had to come to terms with a lot of stuff... Spice Girls was incredible, but very destabilising as a young person.
"You might be working with lovely people who want to make sure you're okay, but at the end of the day you are a product, you're paying people's wages, and that can be a recipe for disaster.
"Young people, making more money than they ever imagined… When it was happening to us there was no emotional or professional psychological support."
And the Who I Am hitmaker has been open about her mental health and other personal issues and is relieved that she has been able to share her struggles.
Speaking to inews.co.uk she added: "I'm relieved and happy.
"But when I first spoke about having depression and an eating disorder, I didn't feel like I had a choice. I was very young and a lot of my issues changed my appearance, I felt compelled to tell everybody why.
"I was embarrassed, ashamed. Looking back, I don't think I was ready – I was very vulnerable, still healing, definitely not fully well. There was a long time when I regretted talking about it."