In order to write a novel you will have to understand how to make an outline of a novel before you begin writing.
Every author is a bit different in how a begin their story, some just start writing, others write very short chapters, and others write an outline. No matter how you get started, sooner or later you're going to have to have an outline to make sure that your story runs true to itself.
Also, if you don't make an outline you're going to miss vital scenes, vital conversations, and vital character strong points.
In other words, your outline of your novel is going to describe your characters very strongly, talk about what they're going to do and how they behave, and what the results are. It really is as simple as that, you can add and subtract chapters as you go, you can even add characters, but if you don't have an outline, you're going to get lost in your story.
Writing an outline to a novel is not difficult, and every author does it a bit differently. If you're interested in learning more about traditional styles of writing a novel, use your Internet and do some basic research. You'll see how outlines are begun, how they are changed through out the novel, and how the outline ends up making sure that the storyline is constant.
Remember, if you're interested in writing a novel the biggest part is to begin. It really doesn't matter how you begin, but begin. If you find writer's block is a problem, take a break, do something else, read a story, or read your own novel. Anything you can do to break the cycle of writer's block.
Writing an outline doesn't have to be difficult, find your own personal way of writing an outline to make sure that your story stays true to itself.