"All great masters are chiefly distinguished by the power of adding a second, a third, and perhaps a fourth step in a continuous line. Many a man has taken the first step. With every additional step you enhance immensely the value of your first." –Ralph Waldo Emerson
If you want to write a novel (especially if you’re participating in NaNo), set daily goals and focus on those. Don’t look up at the mountain in front of you. If you look at the pinnacle, you may feel overwhelmed, you may feel you are not up to the challenge. But if you look only at the trail in front of you, and the scenery immediately to your right and your left, you are able to focus only on the step you need to take today. Tomorrow you can focus on the step you need to take tomorrow. In this way, the steepest trail can be completed.
Each day you meet your daily word count is a day closer to your goal.
Remind yourself every day you can do it.