The reader of your essay will be running these checks anyway. Run them first, and hand in nothing you haven't already graded yourself.
Every mark you lose on the predictable things, a missing citation, a justified paragraph, a fabricated source, you could have caught in the ten minutes before you clicked submit.
Four checklists. Four passes. Nothing here needs talent, only the discipline to look.
Argument first, it's the hardest to fix late. Then evidence, then language, then form, the quickest sweep, saved for last.
Run them in that order. Each one is a different lens on the same draft, and each catches faults the others miss.
If your essay went in right now, which check would it fail?
Print it. Read with a pen. Mark every spot where your eye stumbles, those are the reader's stumbles too.
Read it slowly, out loud. The sentences that catch your tongue are the ones that will trip the reader.
“Write better than you speak, writing is your chance to catch the sloppy little things spoken English forgives.”
Take your current draft and run the argument checklist, line by line, in order.
Trade drafts and run a partner's argument checklist. A second reader catches the box you talked yourself into ticking.
Chapter 23, pages 100 to 101, with the full four-part checklist and the two-pass habit. This is the last chapter, the whole book has been preparing you to run it.
Chapter 23 · The end of the book, the start of the habit