How can you be currently writing a book if you have no idea's?

I can't actually think of anything for you, but I guess my advice would be is there any gaps you saw in the storyline? is there a moment where you think something could've happened differently, are there any "What if" this happened instead of this, you can think of Basically a different scenario to what did happen? For example what if Nathan went on Tour with Haley & Chris Keller.

Is there a Naley moment that happened off-camera that you wish you saw on screen?

If the answer to any of these questions are "yes" Then there's your idea