Help me with my essay?

I threw out my old essay and rewrote it, but since it's due tomorrow, I really want to get another opinion on it before I turn it in. I'm tired and the writing probably isn't too good, but if you could just look over it (or at least the paragraphs I have done) and give me any constructive criticism you can, it would be really great. I just need some feedback on grammatical things, word choice, anything you'd change, how it flows, etc. Any suggestions would be wonderful, too. I could maybe just email you a paragraph or two and you could read over it and tell me what you think? Like I said, this is due tomorrow, so I'd really appreciate it if someone would quick look over it. Thanks.