What makes me sad in fashion is that everyone is looking for trends. A trend is one thing. Timeless is another. In 20 years, I've seen so many trends. It makes me sad when people go for the trend versus quality or vision. Or when people wear something so basic just to make sure they're considered cool, like a white t-shirt.

There are two women that I am really in love with that I wish I could have dressed: The first one is Marilyn Monroe, and the second is Whitney Houston. People always ask me who's going to be the next, and I never know, but I know I would love to have had Marilyn and Whitney wear Balmain.

I wish fashion would have changed a bit more; obviously, there is change, but it's not enough - for example, I don't think there's enough diversity in fashion on the catwalk, in magazines. I really would love to push that more.

I think the only word I can use to describe what I'm doing today is feeling free. Of course, it's a business - it's about money at the end of the day, but it's about ideas as well. When you treat fashion only like a business, you're not going to go anywhere; when you push on that, we have the chance to express ourselves.

What I'm doing now is having people with and around me to build what other designers built before - like Pierre Balmain with Josephine Baker, Audrey Hepburn, Dalida, Brigitte Bardot.

I actually am locked away. I think I have 4.6 million Instagram followers, which is obviously a great way to communicate my work and my life. But it's also a form of protection, because I don't want everybody to see my process. What I want to share in the pictures I post is something dreamier than reality. I love solitude. I love escaping into my mind and sketching. Sometimes I travel alone. I'm the first one at the office in the morning, the last one closing the door. People don't expect that, because on Instagram I have a reputation as a party boy who takes selfies all day.

I've learned that I am strong enough. When some people might have given up, I didn't. I found myself in situations where I had to make choices and I followed my instincts. You can't show people you're learning, because if you do, they will treat you like a kid. You have to grow up faster, not showing any fragility.