I mean, you have to be able - you have to have made the commitment within yourself to do whatever it takes to get the job done and to try to inspire other people to do it, because obviously the first rule is you can't do it by yourself.
In order to write novels for a living - it's not pathological, but I do think and worry and brood and fidget about stuff that I'm working on.
If you ask me if I think I will be sober in 24 hours time I can say yes, but in two years I can't tell you. I could be dead.