Unless if you finished way ahead of schedule, don`t worry about major revisions like reorganizing the structure of the essay–it`s better to hand in an essay with an imperfect structure than a paper that`s impossible to follow because you had to stop halfway through the revision process.
In longer essays, you can end the introduction by briefly describing what will be covered in each part of the essay. This guides the reader through your structure and gives a preview of how your argument will develop.
This tip may seem basic, but it`s easy to forget and it can make a big difference. Both these measures won`t just make it easier for the marker to read your paper; they`ll also help you write it. If you have time left at the end of the exam for review, having the ability to skim quickly through your work and write revisions in blank spaces will be incredibly helpful.
Perfecting paragraphs is a time-consuming process, and, if you spend too much time editing before the essay is finished, you might have to rush through the last few sections or leave them out entirely. For this reason, it`s best to focus on producing a complete first draft before you worry about edits and revisions.
Some students react to the time pressure of essay exams by scribbling down their introduction as soon as they`ve read the question and figuring out their points as they go. While it might seem counter-intuitive, taking five or ten minutes before you start writing in order to draw up a plan will be an enormous time saver.
For this reason, it can be helpful to simulate the conditions of a timed exam before the actual day: pick a practice question, find some lined paper, set a stopwatch, and see how you do!