Revise or not revise or maybe over revise?

When I approach the end of my writing piece, I look at it as a rough draft, my thoughts written down the way I was thinking about it at the time. I tend to think faster than the fingers type so I check to make sure that it isn't a typo disaster. I re-read my writing out loud which helps me to hear what the piece sounds like, the pace the tone. While I write I tend to be speaking to someone in the room a conversation of sorts. I then go back and make the writing more colorful, adding flair and fun. I want to make sure it all makes sense and is interesting. I check to make sure that my sentence doesn't run on forever and I take a breath. I also tend to make sure that all the content is included, did the point or thesis make sense, will the professor think it is good. I do tend to over revise, I sometimes need to just walk away and come back to it so that I don't change it so much that it becomes overdone.