Aw, I'm sorry to hear that. I suffer from "I don't know what happens next!"-itis, and it used to stall me out, but then I reminded myself that no one is ever going to see the first draft but me, and it helped.

NaNoWriMo has given me some good starts, but it totally short-circuits my usual process.

Have you read The Artist's Way? (Sorry if I'm being boylike and trying to fix things needlessly.)