@doneinsideout I'm not too experienced with writing but sure, I can give you some tips .
For me, I plan out the story line in my head (or sometimes I write it down so I won't forget) and as I write I just go with the flow. If any new ideas pop up I include them, and it's much easier that way. But it's important to know the exact story line so you don't lose track of what you're writing. Also, I like to explain in detail how the characters feel, to make the book more understandable.
I hope this helps, xx ❤