I never plan to run at a certain pace. All my career my motto has been 'no limits.' I don't try to run with a set time in mind, sticking to set splits, because what happens if you're ahead of your splits - are you going to slow down?
A half marathon is a good way to have a bit of fun and race against those girls and learn a bit more about them. The world half marathon is a world championship at the end of the day and it's important. I've win it twice and it's a quality event.
If I start planning then that's dangerous because then I have a target that I'm blinkered towards and I won't listen to the warning signs quite so much. I'd rather be in shape and then look around and say there's a race next week and jump into that than have it planned.
If you look back at my marathons and ask whether I would swap one of them for my one balls-up, of course I would. But you can't choose. You have to make the best of it on the day.
To represent your country at a home Olympics is something special and I'm over the moon to be selected for Team GB. I was pleased to get the qualifying time in Berlin earlier this year and my sole focus is getting in the right shape for London.
An Olympic medal won't define my whole life, although it might look like it to onlookers. When I look back, I should have been able to get an Olympic medal.
