Cara Delevingne

You never realise that you have an impact on people's lives. There are so many girls that go through so many problems and who come to me. I really try and take time to speak to as many people as possible. ”

I have a great support network - my family, my model agency Storm, and people I work with in the fashion industry. And, of course, there are all my followers on Twitter who stop me from feeling lonely; I love them all. They keep me grounded. ”

I can't sleep in the evenings. Most of the pictures people see of me are me going to work events: a Fendi dinner one night, a Prada dinner the next, and working all day. ”

Fashion Week is horrible. I mean, it isn't horrible, really - it's amazing. But having to work that much every day is. ”