✔ 最佳答案
There are three kinds of writers: Plotters, Pantsers, and those in-between.
Plotters plot the entire thing ahead of time all the way through.
Pantsers have an idea and start by the seat of their pants. They're able to let the story go whichever way it goes. (I don't know how they do it, but I've met some published authors who do that.)
In-between sounds like you.
There is only one way to write a story--however it works for you. Don't let anyone try to tell you that you have to do it any particular way. ;)