Firstly, stop thinking about being prolific. Every writer is a different personality. If you love to write stories, you will write lots of stories.
One day, you might stand back and be amazed at your own work.
My point here is that writing stories and novels is not about being a prolific writer. It’s about writing great, entertaining, enjoyable stories that reach into the hearts of all types of readers. You bring joy to others through writing, sometimes, you bring melancholia to a reader — and they are glad of it. It made them think deeply about life.
I think all writers struggle, especially when they know they have something to write about. The fear of letting the words fly over the keyboards, the results of trying to get the story out as you wanted it, is a hard thing to do.
Your struggle to write is obviously the same as a person who is starting out as a marathon runner. They want to jump in and be great at long distance running in one weekend. It won’t work. But, you will learn something important, and that is that it all takes time to become good at what you do, the better you are through practice, the more confidence you have in your abilities. That’s when you’ll see that sitting down to write becomes more frequent and your work builds up to a substantial amount of stories, books, and articles.
Being prolific is a myth that publishing houses like to tag their favourite writers with, but to tell a great story is another thing.