urgent help! Document recovery

I am an idiot- I only did this because I was really tired.

So I hae two hard drives. I was typing up my final paper for a class and was backing up from one hard drive to the next. I had already done this once. However, I transfered the old version and overwrote the new one

So now 5 pages of writing are gone!

I know if you delete something its recoverable- but am I screwed since I overwrote it?

Help ?!?

sorry wrong section.

Nope, it's gone.
You didn't delete it (would be recoverable then), but overwrote it, thus making recovering NOT an option.

Sorry for your luck