I always had a very strong sense of responsibility, so the minute I started to work in fashion, I was always tremendously serious-too much sometimes. Of course, you can make a lot of mistakes in this job-I still do-but you need to limit them as much as possible. When you're responsible for such a huge company, you cannot play too much. In the beginning, I was working 20 hours per day and I was going crazy. I learned that I needed to delegate and to trust the people around me, but there is still not one element that I don't see or edit or discuss with my people.