I think, with age, you learn that it comes in bursts and you've got no control over it. I'm not one of those people who says, 'I've got to write a song every day.' I just store up ideas, and really I have to wait until it finds me; I know when I'm ready to write. It used to frustrate me, but it doesn't any more. It's just how it is.
If you're making music, you must want to turn other people on to it, whether you're number one in the charts or number 60. I don't know, that's a commercial thing, but just the fact that other people like you... there's no point in making music, otherwise. Otherwise, you might as well make it in your bedroom and leave it there.