You look back and you remember the good, the bad and the ugly.
My time at Honda was amazing. Some of my best times in Formula One, actually. I might not have won races, just one race, but I had a lot of fun.
I need to develop a car and engineer a car in a position that feels comfortable for me, and I don't think anyone can do a better job than I can in that position. The problem for me is if I can't get the car there I do struggle more than some.
I love cycling, running and swimming. In recent years I've competed regularly in triathlons, which means I don't find the physical side of driving a struggle any more.
I always think I should try to get to bed early, but then I can't stop myself from watching telly and fiddling around on the net.
I think as a 20-year-old you expect life to always be easy. You get given a good hand and the chance to race in Formula One. You think the driver can make the difference, can make up for everything else within the team. But that is not the case. You are racing in such a competitive sport so that doesn't happen.
When I'm on my own, I can be negative. I need my friends and family around to help pick me up if I've had a bad qualifying session. I think insecurity plagues a lot of sportspeople.
My school reports always used to point out that my concentration levels were appalling. I never listened in class because I was always daydreaming about racing. I never thought for a moment about doing anything else. There was no guarantee that I'd make a career in it but I never had any plan B.
When I do retire, I know for a fact that I'll never be able to replace the incredible feeling I get when I'm driving an F1 car.
In the car and in front of the camera I tend to be very calm but behind the scenes I can get fired up and passionate, I just don't see the need to shout my mouth off in public.
Women don't get the same opportunities that men get in racing, so they don't get to learn race craft.
It doesn't matter who wins if I don't. I only care if I win. I'm jealous of anyone else who wins.
I think fans of the sport have a good understanding now of how fit Formula One drivers need to be.
I can't eat whatever I want, definitely not. I'm always controlled because I do a lot of fitness and triathlons, not just Formula One, so I always make sure I eat the right things.
I think social networks are really working for the drivers, because we're able to talk directly to fans and they get first-hand information. And I think it's great for the partners as well and the businesses that are involved in Formula One.
The fast, flowing parts, the high-speed corners, that's where a Formula One car is at its best - changes of direction, pulling high g-forces left and right.
If I ever have a son, and if he wants to follow in my footsteps in Formula 1, my main responsibility will be to point out some of the negatives.
If someone was making a movie about F1 in the last six months, they wouldn't need to add a Hollywood ending. If they do make that movie, it's got to be 'The Curious Case Of Jenson Button,' where I've lived my life backwards. I'd like Johnny Depp to play me but he wouldn't be quite right.
I've spent as much as 30 grand on a watch but it's not about flaunting my wealth. I don't have many extravagances but watches are my biggest one. I must have 30 of them now. I've been collecting since the age of nine, when I won a black TAG in a karting event.
Yeah, I'm the Brit who isn't Lewis Hamilton that woke up and realised he was good. I got that tag because I was young, flying around in jets and driving fast cars. I always took my driving seriously, but I suppose I enjoyed life... But I'm not a playboy.
