I would also argue that there is a good chance that an outline will help you stave off any onslaught of writer's block. Let me advise you right up front that I am not a big believer in writer's block. I think writer's block is God's way of telling you one of two things - that you failed to think your material through sufficiently before you started writing, or that you need a day or two off with your family and friends.
Terry BrooksLester del Rey told me repeatedly that the first and most important part of writing fiction is just to think about the story. Don't write anything down. Don't try to pull anything together right away. Just dream for a while and see what happens. There isn't any timetable involved, no measuring stick for how long it ought to take. For each book, it is different. But that period of thinking, of reflection, is crucial to how successful your story will turn out to be.
Terry BrooksThere is poetry in fiction. If you cannot see it and feel it when you write, you need to step back and examine what you are doing wrong. If you have not figured out how to write a simple declarative sentence and make it sing with that poetry, you are not yet ready to write an entire book.
Terry BrooksIn bad weather, I spent hours drawing action figures on paper, coloring them, backing them on cardboard, then cutting them out and creating whole stories around their lives.
Terry BrooksThe future is an ever-shifting maze of possibilities until it becomes the present. The future I have shown you tonight is not yet fixed. But it is more likely to become so with the passing of every day because nothing is being done to turn it aside. If you would change it, do as I have told you.
Terry Brooks