Sit on your work before revisions. This tip isn't too complicated, just that if you want to revise or edit your work yourself, the best thing to do is to give yourself maybe a couple of weeks to a month before reading it again. This way, the thought processes that led to whatever decisions you made will have faded out of your brain, and you can read as an actual reader of your work would, with fresh eyes. This will allow you to easily spot places that don't add up or areas that might be confusing for anyone who doesn't intimately know the workings of your mind.
writer, studio artist, and Japanese Translator