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I've heard people say "I can't write". What they usually mean is that they don't feel like they can string together a complete story.
I count myself in that group. You know what helps? Forgetting about trying to write a novella and instead just writing the things you think of as bullet points.
Sure, it won't look pretty, but in the end you'll have written your ideas down. Plus, you can use them to further develop what you wrote down into a story! Try it!
