I want to wake up every day and feel that I'm training harder than my competitors, that I'm dieting harder, that I'm recovering better. That's what gives me confidence when I'm lining up on the blocks. I've never gone out to prove people wrong. I just want to be the best that I can possibly be.
Thank you to everyone that has made me the athlete I am! God, family and friends, my competitors and supporters! You have all had a hand!
I wasn't happy with my performance at the World Championships in Daegu. I had an unbelievable race in the heats, but misjudged the semi and finished last.
Everyone has setbacks. I'm no different. I happen to have no legs. That's pretty much the fact.
My parents didn't give me any scope to feel sorry for myself. They were just like 'go play with your brother, go climb a tree, go fall off your motorbike, do whatever you want. Don't come crying to us when you get scratched. You've got prosthetic legs - that's very nice.'
I have a phenomenal team behind me who have helped get me here and I, along with them, will now put everything we can into the final few weeks of preparations before the Olympic Games, where I am aiming to race well, work well through the rounds, post good times and maybe even a personal best time on the biggest stage of them all.
I am also hugely excited to then be competing to defend my three Paralympic titles at the Paralympic Games. I believe we will see some amazing times posted and I am very much looking forward to what will be an incredible Olympics and Paralympics in London.
I have run two Olympic 'A' standard times over the past 12 months and with the time I ran at the African Championships last week I know my speed and fitness are constantly improving so that I will peak in time for the Olympics.
To have been selected to represent Team South Africa at the London 2012 Olympic Games in the individual 400m and the 4x400m relay is a real honor and I am so pleased that years of hard work, determination and sacrifice have all come together.
Out of the tens of thousands of prosthetic legs they've made, there's never been any 400-meter athletes run under 50 seconds. So, if this was such a technologically advanced prosthetic leg, then how come not everyone's qualifying, or coming close to the qualification time, then?
I have a strong sense that I have to educate people about disability.
Putting on my legs is like putting on my shoes. I understand that's how some people might think differently, but I hope that in London, their perceptions open up.
The more I accomplish, the more pressure I put on myself.
I can have my goals, and I can have my dreams. My goal is to make the finals and improve my position. I want to run all decent races. I don't want to look back and say I ran a terrible race.
I don't see myself as disabled. There's nothing I can't do that able-bodied athletes can do.
I don't want to be competing in a sport where I feel that I'm here not on my talent and my hard work but because of a piece of equipment.
These have always been my legs. I train harder than other guys, eat better, sleep better and wake up thinking about athletics. I think that's probably why I'm a bit of an exception.
I'd like to show people that if you put the hard work in and you believe in yourself, then you can do whatever you want to.
I still find it strange, I suppose, when I say to someone, 'Can you just pass me my leg?' But I don't ever think about my disability.
When you're competing, you don't have the choice of what the weather will be like. It really doesn't affect me. I ran one of my fastest times in the New York Diamond League meeting last year. It was raining pretty hard then.
Rio in four years; I've got more inspiration in the last two, three weeks. I'm sure I'm going to get more in the Paralympics in the next coming weeks, so by the end of this season, I'm going to take a month off, and then the next four years is going to be good.