Both re-read it and plan. In my life(well,you don’t know who am l),people thought I’m a disorganize or dirty person because I have many papers which they thought are trash.Imagine that in 4 or 8 years from 8 years old to present.In case you don’t know,I start writing stories at a young age.Even my plans are finalize, There still a mess cause I’m not comfortable in my plan, so I re-read my stories and re-write it.