Okay, so this is going to be a cryptic post. I guess I could be sorry for that, and this is not necessarily my story -- but I know enough authors and I've watched enough journeys to relate. Maybe you can too.
Okay, so imagine yourself on this path:
1. You write a book. It's a good book. People read it and tell you so.
2. You query the book, and you manage to get a literary agent. And your literary agent manages to get you a book deal.
2. You decide to publish the book yourself.
3. You now have a book out in the wild.
4. You blog.
5. You promote your book and yourself.
6. You do signings, events, speak to library groups, book clubs, the works.
7. This next step could involve any number of things. Blog tours. Scavenger hunts. Conventions. Teaching classes. Facebook pages. Tweeting.
But still, your book isn't doing as much as other books. It's not selling as well as your friend's books, or books that are similar to yours, or whatever whatever.
You might feel like all is lost. That no one will ever buy another one of your books. That your agent or publisher will drop you, or that you won't be able to write something people will read.
I'm here to say it's not true. Your first book does not define your career. Even the first series does not determine whether there will be a second.
Only YOU can define that.
So don't give up hope.