07/03/2016 2:33 PM AEDT | Updated 15/07/2016 12:51 PM AEST

Delta Goodrem On Turning 30, Finding Her Own Style And Letting Go Of The Haters

Photo by: KGC-143/STAR MAX/IPx 2015 10/5/15 Delta Goodrem is seen outside the ITV London Television Centre Studios. (London, England, UK)

When you’ve spent more than half of your life in the spotlight, there’s bound to be a few fashion moments you regret.

For Delta Goodrem, 31, it was an entire year during her early twenties.

“There were some ginormous mistakes! I was clearly struggling with fashion and I wasn’t dressing to how I felt,” Goodrem told The Huffington Post Australia.

Goodrem, who tells us this while wearing a stunning cream vignette skirt ensemble by Sydney label Camilla and Marc has just been announced as Westfield’s Style Ambassador, together with Yaya Deng.

As part of the campaign, both Goodrem and Deng star in a short film called “Own Your Story” where they explore the role fashion has played in their personal journey.

“Since turning 30 I’ve really learnt to embrace the moment when it comes to fashion. It doesn’t matter about what you used to dress like or what you think you should dress like, it’s about dressing for exactly who you want to represent right this minute,” Goodrem said.

Goodrem explores her own fashion journey in Westfield's "Own Your Story" campaign.

Goodrem reflects on the time she struggled with her own style after undergoing chemotherapy treatment for Hodgkin's lymphoma.

“My exterior had obviously changed and I was going through some dramatic life and health challenges. I didn’t know how to embrace the feeling that had changed inside and I found it hard to let go of the person I was before,” Goodrem said.

Fast-forward almost a decade and it’s Goodrem’s girlfriends including television host Renee Bargh and accessories designer Jacqui Brady-Chapman who inspire her most when it comes to style.

“I love Aussie women. I find them the most stylish in the world and whenever I’m in other countries, I always find myself going back to Australian designers,” Goodrem said.

Her favourites? Camilla and Marc, Carla Zampatti, Steven Khalil, Ginger and Smart, Zimmermann and Sass and Bide.

Delta with friend and television host, Renee Bargh.

When it comes to red carpet events, Goodrem said she doesn’t tend to stick to the same stylist.

“A stylist is one role in my career that I’ve actually never had as a consistent part of my team. I’ve always been a bit of a roadrunner because I tend to go in all different phases,” Goodrem said.

Celebrating individuality and not simply plucking looks off the runway is how Goodrem approaches her wardrobe today.

“I do my own thing. I love and appreciate trends but I’ve always only taken little parts of things along the way and put my own version on it,” Goodrem said.