For most of my stories, the ideas just come to me. I say dream a lot. Most of the time it starts with a single scene. I then take that and expand it into a full blown story. Other times it starts with a cool character idea.
I think at any given time I have about 2 or 3 potential story ideas floating around in my head.
This one is my best so far and more progressed than my other stories:
advice i would give: i would say carry around a journal or have a notepad in you phone to jot down your ideas. Sometimes i end up combining story ideas together to create an even better story
also don’t be afraid to let your story evolve and change as you write it. You may start out with one idea but then the story changes to another. Let it happen, it usually ends up being better that way