Restoring unsaved files

I've been working on several compositions for my composition auditions and prescreens for college. My computer crashed and I (very stupidly) hadn't saved any of the files that I had been working on, and when the pop up came up to restore them, I accidentally clicked "no." I have been working on all of them for several months. It's really crucial that I'm able to restore these and use them, but sadly I don't think that it's going to happen. I'm running out of time to complete them as it is. Is there at all any way I could restore them at this point or am I out of luck? This is extremely important.