Novel in my head

I have a novel in my head that goes on and on every night with some new characters and old ones. I have tried many times to write it all down in novel format, but it just doesn't come out right. Recorders don't help and nor do journals or anything like that.

When I write it out it is missing something and I can't figure out how to get that something on paper! Someone once told me to just write it and see where that goes, but I'm the kind of person who edits as I go. I edit each chapter after its written and ensure that each one of over 1000 words long.

I'm pretty much stuck with it playing like a movie in my head when I lay down. Maybe I'm the only one who is meant to see it, but it's awfully cool and I really would like to share it. Any idea's on how I can pull this baby out and put it on paper?

This novel is over 20+ years old with complex story lines and characters. It's a HUGE massive crossover of Supernatural meets the Avengers. As well as Peter Steele and Type O Negative, as vampires, meet the Twilight crew. One of these day's I'll figure out a way to get these onto paper.