It's very shocking for me to see pictures from my win here in 2008. I aged.

I remember my first test in F1. After five laps, I came back to the pits and tried to play it cool - 'Oh yeah, I'm fine, I'm on top of this' - but I was completely lost.

When you walk the track and you see a corner and realise you were going round it at 160mph, you wonder who could be so stupid to take a corner at that speed. But in the car, you don't even think about that.

All these nice people saying I'm going to be world champion won't make me any faster, you have to believe it yourself.

I put everything in that last lap, it was very emotional when I crossed the line. It was all I had, I gave it all.

It's just fantastic to feel the speed and the braking. It was a hard work - to hold an f1 car on the circuit is a job in itself. To drive quickly is another thing. I enjoyed it.

If you are out in two races and someone else has a good couple of races, it could change. So all we do is try to get the optimum every time.