When you know what generates writing to flow for you, use it often, until it becomes second nature?
Have you considered writing a book-length story where the whole is made up of chapter-length mini-stories?
overall story is the Rise of The Warm Brown Coat.
(or whatever that title suggests)
First two chapters 250 words each or outline format with some detail to show style and direction.
Write two stories in chapter format where one story follows directly from the first or even pre dates the events of the first.
Read and review.