In your story or novel, something must go wrong.
Without conflict, there is no story. As you develop a plot, it’s helpful to think about what is the worst thing that could happen and then figure out if you can make that even worse?
The absolute worst thing–the thing your character fears most of all–MUST happen in the climax of the story. That’s good plotting and storytelling. Building up to that point, you should have a series of conflicts that deepen, that reach out into every aspect of your character’s life, that affects friends, family, or even the survival of the planet or the human species. The series should have a logical progression from bad to worse to worst.
Up the stakes. On way to escalate the conflict is to up the stakes by answering the “So-What?” question. This bad thing is going to happen. So what? Who cares? Who will it affect? How badly will it affect them? When the answer is that the worst thing will affect the most people, you have the stakes well in hand.
Up the emotions. However, even for stories with the fate of the world in the balance are boring if the reader doesn’t care. This means you must provide a wide range of emotions for your characters from the most ardent love to the deepest sorrow. How can I make my character laugh? What would wrench his/her heart? What is the deepest emotion possible in your story? Create that emotional impact. Then take it one level deeper.
Sacrifice. Characters who stupidly volunteer for kitchen duty aren’t sympathetic; they are stupid. However, a reluctant hero who only volunteers to save a loved one–that creates empathy. In HUNGER GAMES, Katniss volunteers to join the Hunger Games so that her younger sister won’t have to. This willingness to sacrifice herself for a loved one elevates here–and the ensuing conflict to new heights.
Jeopardy. When a character is in jeopardy–danger is looming and drawing nearer by the second–readers are on the edge of their seats. Violence, just for the sake of violence, does little to create the emotions needed. Instead, a character must be in danger and must stay in danger for a long time. When I first watched the movie, ALIEN, my stomach hurt because I was so scared. That’s jeopardy. The aliens were coming–and the movie drew out that suspense and jeopardy forever!