Try arranging [your novel] backwards and see what you see. I thought this stunt up from my art classes, where we always turn the picture upside down, on its two sides, to see what lines need to be added. A lot of excess stuff will drop off this way.
I’m a full-time believer in writing habits…You may be able to do without them if you have genius but most of us only have talent and this is simply something that has to be assisted all the time by physical and mental habits or it dries up and blows away…Of course you have to make your habits in this conform to what you can do. I write only about two hours every day because that’s all the energy I have, but I don’t let anything interfere with those two hours, at the same time and the same place.
It might be dangerous for you to have too much time to write. I mean if you took off a year and had nothing else to do but write and weren’t used to doing it all the time then you might get discouraged.
There's more at the link, too.