Irvine Welsh says this in an interview:
"'Writing loads is really important,' he says, 'When people start writing there is this idea that you have to get everything right first time, every sentence has to be perfect, every paragraph has to be perfect, every chapter has to be perfect, but what you're doing is not any kind of public show, until you're ready for it. There is a kind of mysticism to writing. Every kind of book I've written has been written in a different way. There has not been any set time for writing, any set way, I haven't re-invented the process every time but I almost have. I enjoy the freedom of the blank page. You have to respect the mysticism of writing; you're always going to learn things that will work subconsciously and stuff that wont. You can't tear yourself apart with it either. If you become too self-conscious about it, it shows up in the work, so you've got to enjoy it as well.'"