Why me? Why me? WHY!?

Words can't even begin to explain how I feel right now.
The machinima was 90% done. All that was required was a tad of polishing and my voice acting. I've been horribly sick lying in bed this whole week, and so took this week as my one and only deadline (monday-tuesday to be exact)
I sit down today, put it my memory stick where the file was backed up, and I get an error message that something is wrong with the files. I press the clean it up option and upon starting up, the file isn't there.
Simply isn't there.
Vegas can't open it, it says it's lacking the file, please put the driver in the E:// station.
My laptop where I also backed up the file, doesn't have it. (HOW? HOW DID THAT HAPPEN?) I have an older version from when I was working on it on my first computer, and I would LIKE to see how much data is on there, but the screen won't work! So much rage is inside of me right now, it's unbelievable.
I am so damn desperate and prepared to ace this project though, I'll kick all those problems in their robotic bottoms.
As soon as I knew something was wrong, I had a back up plan that will get me good marks, the audience will like it and I can finish on time.

However I am so angry right now. I don't know who to blame. Myself? More copies were required?
Why? Just..... why?
*breaks down and cries*