If writing is so solitary, why are there so many people to thank?
The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.
I never think at all when I write. Nobody can do two things at the same time and do them both well.
There are many excuses not to write. Try using writing as an excuse not to do other things.