Just thought I would update you guys. Talking about the situation seems to help me cope with the stress.
First, the bad news. I've basically exhausted all of my options. I was just denied a personal loan from the bank and I've received no call-backs from the places I applied for work. I don't have a post-grad job that I can ask for help. I can no longer afford the bus fare to get to the Barbri course, so I've switched to the online-only course.
The good news is that I can probably talk my way out of the remainder of my apartment lease. A friend of mine is going to let me sleep on his bedroom floor (I can't use his couch since his three roommates aren't cool with someone staying in the living room rent-free). I might be able to get my parents to give me $50 or so a month for food, but I feel pretty guilty asking for it since I know they don't have much themselves. I've already managed to pay for the Barbri course and bar exam fees, so I can probably get by on very little.
I'm just going to have to suck it up and tough this thing out. Thanks for your suggestions, everyone.