I’ve discovered over the years, in my writing adventures, parts of the writer’s life: desire to write, research, writing, promotion of a book, and there may be others. Each part requires commitment, but it may be that I find commitment easier in one part than another. For example, do I have enough sense of  entitlement to promote my book? Am I committed to the promotion? I guess if there is any hint of reservation in any of these parts then it may be best not to do it and don’t waste a publisher’s or my own time. Maybe stick to what one is committed to and work the rest out from there.