Write With A Purpose

I have trouble writing longer works of finish because they feel like they drag on and I lose steam. One method of avoiding this problem is to write with a purpose. Specifically, make each chapter or section have a specific goal.

In chapter one, the main character is introduced and we see his old life being destroyed. In chapter two, the main character has no choice but to start his journey. He meets a guy who, despite a shaky start, becomes an unlikely companion. In chapter three, the main characters get lost in the woods and learn about each other's histories and motivations while trying to find their way back to civilization. In chapter four, the two lose sight of their goal, get disheartened, but a mysterious stranger gives them new directions that reinvigorate their spirits.

Chapters naturally function as section breaks. You might as well predesignate them with specific goals to cover. This will also focus you and allow you to keep writing without burning out on trying to figure out what happens next or what needs to be added.