Research is always necessary for accuracy in a story. But once you begin the process of writing a story, forget the attitude of the researcher and become the storyteller. Divide your mind into three parts, because with every sentence, every scene, and every chapter, you must be thinking of three things at the same time.
One part of you lives with the hero or heroine of the story. Crawl into his mind and stay there, seeing the world through his eyes.
The second part of you must be able to look around the corner, past the days, the months, and the years ahead to the final scene.
The third part of you must be thinking of your reader, for your story will not happen on paper; it will happen first in the imagination of your reader. What you commit to paper should be geared to making the story live for him. So think of the reader.
Likewise, there are three general things to remember about your readers.
First, don't tell them anything show them...
Second, writing for your reader is like going on a picnic. Both writing and picnics take a bit of planning...
Third, remember that your reader is primarily interested in plot.