I used to break down my writing like that before starting but as it never ends where I thought it would, I stopped. I'm also prepping for NaNoWriMo, my second year participating, and I started writing all the basics, before remembering what a failure that ends up being for me, so I have character names and the idea for the opening and that's it. I shall wait until Nov 1st to do anymore. As for awesome ideas that don't fit, I have a file full of various stories and ideas stored on multiple electronic resources (yeah I'm big on backing up my back ups). Sometimes I'll be working on a piece and it just dies, only to have part of it resurrected in a different piece. Hope you were able to get something accomplished on your story. I think sometimes a brain dump is necessary to clear the way.