Rough drafts are like this. You’re digging for clay in the dirt. You’ve finally gotten to the layer where the clay resides. You grab some clay and throw it on the ground above. A pile forms. You keep grabbing some more clay and you throw it on the pile. There is a temptation to mold the clay pile as you dig for more, but you just have to keep digging and mold later.
Your rough draft is a search for the clay. You successive drafts are the molding of the clay. There’s a danger in molding what you’ve dig up too soon. The fresh clay covers up the moldings you made on the clay pile.