I have learnt the hard way that neither success nor failure last forever.
So, I went to Harvard and I got exposed to American work habits. I didn't even realise for a while that I was behind. I kind of had the illusion that I was understanding things. But people worked so hard and the thing I learnt first in America was that people work incredibly hard.
When I was on a major label I felt obliged to say yes to every interview, tour and whatever else. The label is always telling you, 'This ain't going to last,' so I worked myself half to death. I learnt from that and I like to pace myself now.
A good trick I learnt early on is not to immediately look at playback because once you know the shot, you can see when the camera is on you. It's best to stay 'in it' all the time, and just if it's on you, it's on you, and if it's not, it's not. It's the easiest way.
It is impossible to remain indifferent to Japanese culture. It is a different civilisation where all you have learnt must be forgotten. It is a great intellectual challenge and a gorgeous sensual experience.