How do you write a short story?
You take a deep breath. This is the most important part. A wave of ideas flows into your mind. A concept, a character, a scene.
Now, you hold it in. Thoughts float freely inside your head, caged until they are ready. Some latch together, while others drift apart. Some are discarded, others held tight so that your memory does not lose them.
You exhale and words form on the page. The first paragraph is easiest, you already know what it will say. But as soon as it is written, it begs for a second and a third to follow it.
Here is the hardest part, where your breath comes fast and ragged, and ideas are thin on the ground. You begin to wonder who will read it, you only ever cared about the beginning.
You give up.