At the time of writing, I don't write for my friends or myself either; I write for it, for the pleasure of it.
When I read, I hear what's on the page. I don't know whose voice it is, but some voice is reading to me, and when I write my own stories, I hear it, too.
What we know about writing the novel is the novel.
Writing fiction has developed in me an abiding respect for the unknown in a human lifetime and a sense of where to look for the threads, how to follow, how to connect, find in the thick of the tangle what clear line persists.
Every story teaches me how to write it. Unfortunately, it doesn't teach me how to write the next one.