Manners is the key thing. Say, for instance, when you're growing up, you're walking down the street, you've got to tell everybody good morning. Everybody. You can't pass one person.

Worrying gets you nowhere. If you turn up worrying about how you're going to perform, you've already lost. Train hard, turn up, run your best and the rest will take care of itself.

I still have the drive. I just want to push the barriers and see what I can do and how far I can go. I am just determined and driven.

One of the things we're trying to do more of is not just take money from corporate partnerships, but get more involved in the business side for when I retire. So Puma are going to make me an ambassador for life. I have a clothing line coming out. I am investing a lot in housing in Jamaica, buildings for rent.

I can still improve a lot, but there is definitely a limit to what the human body can do.

Politics is tricky, especially in Jamaica. There are two parties, Jamaica Labour Party and People's National Party, and if I went for one, I would upset supporters of the other. I stay as far from politics as I can.

It's a great feat for me to have broken my world record.