I just want to make a revision of those comments which talk about the writing Essay. My modest point of view, The time it takes to write an essay depends on the sort of exams and Topic you are writing in. I guess that the writing process isn't mandatory, So you can ignore this step. But its help you for arrangement ideas. With regard to your first question, I guess that it's advanced question, but my opinion the topic a major factor in classification the writing essay.