Cara Delevingne said shes found absolute freedom in sobriety.

The native Londoner has experienced massive success as an actor and one of the highest-paid models in the world, but said she used alcohol as a crutch that eventually dominated her life. When asked if it has been easy to quit, Delevingne was rather candid.

It hasnt, but there have never been moments when Im like, This isnt worth it, she told Elle UK in an interview for the September issue, published on Monday . Its been worth every second. I just dont know what it would take for me to give it up. Im stable. Im calmer.

Delevingne said Alcoholics Anonymous and its 12-step program have been invaluable. She does breathing exercises and yoga , and said art is therapy and feeding myself creatively have helped as well.

Delevingne, 30, first experienced depression at 15 after learning that her bipolar mother was addicted to heroin . She dropped out of school in 2009 to begin modeling, and started depending on alcohol to manage her newfound fame.

It didnt feel real, she told the magazine. I didnt feel like I deserved it. I didnt feel worthy. I was still stuck in this mindset of not being good enough. I was doing the best I could, but I wasnt really appreciating every moment. Inside, I felt very different to how I looked.