Poof! My thesis is gone!

I can't find my jump drive. Damn it. I have my whole thesis on there and I'm stupid, so I didn't make backup files of it...
The last time I remember seeing it, I used it in the computer lab yesterday morning to print off my journal for class. I went back into that lab today, but I didn't see it. I also searched the library at school and asked the people at the desk about it. I called the grocery store, the public library, the plasma place, and the auto mechanic's...none of them had it. It's super shitty if I can't get it back. I think tomorrow I'll search that computer lab again to see if it's there...
Damn.