I felt deeply for Sarek. It's never happened to me before. There are an awful lot of new people I don't know at all. It was a wonderful experience. I'd love to work with him again.
Writing has nothing to do with publishing.
People get totally confused about that. You write because you have to - you write because you can't not write. The rest is show-business. I can't state that too strongly. Just write - worry about the rest of it later, if you worry at all.