Training to me isn't about a set time at the gym - I move at all times of the day and night.

Getting enough protein is important when I train, to help build muscle and recover, so I'll supplement with protein shakes.

I studied every move, I became fascinated by thinking what I could have done differently. And I take that approach now as a professional. I am on it, all the time, never stop thinking, learning. You don't get to be world champion unless you do that.

I love money, and I love movement. I like what it has let me do for my family. I have paid off my mum and dad's mortgage, I've bought them two BMWs, they can have anything they want. I am buying a fleet of cars for myself. I have unemployed my sisters, they don't need to work, don't need to worry about a thing.

Sometimes the truth hurts. It hurts because they have a weakness - and I exploit weakness.

I used to imagine it. I used to pretend that my Peugeot driving to the gym in the rain in Dublin was a Ferrari on the Vegas strip. And now that I have that? I can't even describe that feeling. That's why I like the best - the best cars, the best food, the best watches.

I believe in believing. My coach John Kavanagh is a big atheist and he is always trying to persuade people to his way of thinking, and I think what a waste of energy. If people want to believe in this god, or that god, that's fine by me, believe away. But I think we can be our own gods. I believe in myself.