I was so scared of the water when I was little. I used to grab onto Mum's hand to get out of the pool. I did not even want to shower.

Mum tries to make every race that she can.

My coach and I thought I could swim a 57.3 if I executed the perfect race, but I did even better than that.

Training is my drug. I'm going to be the best I can in and out of the water - train right, eat right - and that is the way it should be.

Before competition, I start to question things. I don't know why it happens, but you've got to control it so you don't get too far out of the race.

When you take the world record, a lot of people are going to go out there to get you, really. I kind of enjoy that. I like being chased.