You plotted correctly and it the story is wonderful. You drew from deep within and created the perfect characters to carry your story to conclusion. You kicked everyone out of the house or went to your special hiding place to write. And you put the seat of your pants to the seat of your chair and get started.
And nothing comes out as it should. What’s worse, you can’t figure out why not so you don’t know how to do things differently in order to get it right. What to do?
Don’t sweat it. Write a few words or sentences to remind yourself later where you are in the story and what’s happening and then go on to the next part. Or to the end. Or to whatever scene in the story you can wrap your mind around at the moment. And write.
Don’t worry about the part you couldn’t do. Come back to it later when you’re in a better mood. It’ll most likely go right then because you’ll have filled in what happened before and after that particular scene.
Hint: when this happens to me, I highlight the scene that didn’t work so I can find it easily later. For some reason I can’t figure out, just passing over those highlighted words when I’m on my way to the scene I’m working on at the moment does something. It gets the creative part of my subconscious mind working so when I do return, I find that I know exactly what to do.