Cara Delevingne needs to cry every day.

She said: "For me, yoga's the only way I can really feel things and check how I am. Because there is always pain somewhere, even if it's completely irrational pain, and it's always good to find it and get it out.

"If I don't cry pretty much every day I will hold it in, and it will manifest in me in things that are destructive, like my skin."

The 23-year-old beauty - who is dating singer St. Vincent aka Annie Clark - felt it was important to be honest about her own mental health struggles in order to support other young people going through similar experiences.

She told the new issue of America's ELLE magazine: "I couldn't just sit there and listen to these girls, and boys, too, but usually girls, say this stuff, about bullying, about their sexuality, depression, and guilt and suicidal thoughts and just all of it, without being like, 'I have been through that, and it's going to be OK.'

"If I can help a teenager go through a better time than they should be, then I am going to f***ing do that. I mean, f***ing being a teenager suuuccccks. And I somehow came through the other end."

Cara admitted she finds it difficult having to cry on screen because she was taught it was "weak" when she was younger, and she envies 'Suicide Squad' co-star Will Smith's children as the actor and his wife Jada Pinkett Smith have always encouraged them to be open about their emotions.

She said: "I don't think I have ever, ever cried in front of more than one person ever, ever.

"Because I grew up in this very 'Emotion is weak, head up, move on, onward and upward' kind of way. Which is not healthy.

"Will Smith was telling me he brought up his kids to put their emotions first, and when I heard that, I was just like, 'Oh my God, that sounds like a fairy tale.' Because emotions should be put first. It's the most important thing."