So I spent the last 3 years writing my first book, which has gone down quite well, receiving glowing reviews on amazon, and sold more than I expected. The problem is, people keep asking me when book 2 is out. I don't have a book 2, wouldn't even know where to start writing it, not even sure I want to start it, and don't actually think I even have it in me. The first was so draining, I think this actually might be it, but if it continues to do well I don't think I'll be able to put it off any longer. So where do I start?