Now that you know how to come up with great story ideas, you need to know how to take those ideas, and turn them into stories.
You could, of course, just start writing. That’s what most inexperienced writers do. But if you start telling your story that way, without knowing where you’re going with it, or even how you’re going to develop the story, you’ll likely run into some problems.
You don’t want to do that. You’re sitting on an awesome idea with so much potential. You need a plan in order to conquer it—a blueprint that you can follow, that you know will produce high quality stories time after time. You need to have a solid writing process.