Ideas are the cheapest part of the writing. They are free. The hard part is what you do with ideas you've gathered.
Exercise the writing muscle every day.
Get up from your desk and wander outside occasionally. To be a good writer one needs to be a good observer, and there isn't a lot to be observed at desk level.
You write to be read. That is the bottom line.
Take a step, breathe in the world, give it out again in story, poem, song, art.
Readers re-create any story to suit their own needs. They re-clothe the story in their own shirts. Put simply: just as we write the story we need to write, they read the story they need to read.