Omg that sucks so bad! It's happened to me before and I know how terrible it feels! I'm no computer professional but if the file's still there you just can't open it, there should probably be some remnant of your essay there.. I don't know, I'd try opening it with notepad or google problems (I'm sure there are 'unscramblers' out there, people can even recover information from burnt computers, so..) But if you can't recover any, then I guess you just have to deal with it. Give yourself a piece of pie and keep strong!