Writing advice about the ‘best’ writing process is easy to find.
Some writers enjoy meticulous planning and outlining. They know what’s going to happen from scene-to-scene. Some people like to fly by the seat of their pants and improvise as they go. With one method, you might end up revising more. With the other method, you may revise less but miss some of the thrill of discovery.
Now, if you’re starting out and trying to decide the best way to write – be careful of advice that says you must outline heavily, or that ‘pantsing’ is the only way. Both statements amount to terrible advice.
Instead try both methods. Maybe you find yourself working in both camps. 30% here and 70% there. And that’s ok.
The best advice about writing is to learn how you write.