Writing is not the best occupation for your health. For most of us, writing involves a lot of sitting, which is why a good walk may be the best writing exercise there is.
As you develop as a writer and work to perfect your craft, what you're aiming to improve as you practice and progress is your written fluency.
There’s plenty of advice out there on how to become a great writer, and you need to be your own writing teacher if you want to unlock your potential and create your best work.
One way to create a memorable story is to take a minute to let your characters breathe. Build a scene where you exit the narrative structure and allow your readers to bond with the characters.
There’s a powerful engine in your book, it’s just a bit hard to find. It’s in every word, it drives plot and characters and everything else.