Perhaps you haven't organized your thoughts properly before writing. Take some time to plan out the structure and sequence of events to make your story more coherent and less blurry for the readers.
Maybe you didn't describe the details clearly enough. You need to focus on specific events and characters to make it sharp.
It could be that your story lacks a clear plot or theme. Try to define the main idea and build the story around it to make it more focused and less blurry.