I've never set out to be a spokesperson for women's equality. My experience of working with Amelie Mauresmo gave me a small insight into attitudes to women in sport and, because it was unusual for a male tennis player to work with a female coach, I am often asked about that. Working with Amelie was, for me, because she was the right person for the job, and not a question of her sex at all. However, it became clear to me that she wasn't always treated the same as men in similar jobs, and so I felt I had to speak out about that.

It was hard at first. I craved the soft, chewy, comforting feel of bread. I craved crunchy pizza dough, sweet rolls, and all the foods that I learned contained wheat—things I had never suspected. For the first 10 days or so, I craved these foods, but I focused each day on staying disciplined; and, fortunately, my family and friends—even though they thought I was crazy—supported me in my quest. But as the days rolled along, I began to feel different. I felt lighter, more energetic. The nighttime stuffiness I had lived with for 15 years suddenly disappeared. By the end of the first week, I no longer wanted rolls and cookies and breads; it was as if a lifelong craving had miraculously abated. Every day I woke up feeling as though I'd had the best night's sleep of my life. I was beginning to believe.

The reason why so many vivid, undeniably convincing characters in novels, films and plays so often failed to touch me was because these characters didn’t connect to any of the other characters in an interesting human relationship. And immediately, this next thought came regarding my own work: What if I stopped worrying about my characters and worried instead about my relationships?

But part of practicing to me is actually an active enjoyment. When people ask, “How much do you practice and do you like practice?” Well, I think it’s always getting your mind to go from “I should” to “I want.” It’s like the magic button that only you can locate. When you’re doing the “should” thing, time happens very slowly. Ugh, I’ve been practicing forever! Fifteen minutes. But when you want to do something, an hour has passed. Your control of time depends on whether you should do something or whether you want to do something.

Day one of my first job out of college, my boss found out that I didn't know how to enter data into Lotus 1-2-3. That's a spreadsheet—ask your parents. His mouth dropped open and he said, ‘I can't believe you got this job without knowing that”—and then walked out of the room. I went home convinced that I was going to be fired. I thought I was terrible at everything… but it turns out I was only terrible at spreadsheets.