If you realize that you`re falling dangerously behind schedule, it might be necessary to cut some arguments or examples you planned to include. Although making these omissions can be painful, it`s better to leave out a few points from one section than to leave out an entire paragraph because you ran out of time.
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.
Once you hand your exam to the professor, relax! It`s easy to work yourself up after an essay exam when you didn`t get the chance to read your work over or you feel like your arguments were weak.
If you did your best to write a complete, clear, and insightful essay within the time allotted, you should have nothing to worry about.
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!
If you have enough time left over, read your essay again and make corrections. When you`re working under time pressure, it`s easy to make grammar mistakes or produce hard-to-follow sentences; the final few minutes are your chance to clean up those errors.