After my not so serious reply I decided to actually read through some of the other replies and I'm moved by all the thought that has been put in to them.

Even though I'm usually against loans for anything but something that generally gains value over time, I'd actually advise to get a small loan to just ease your life. I wouldn't be worried about finding a job after getting your degree right now. Even though it might be hard, you will find something.
I mean, if you're really feeling miserable the way things are right now and you believe that (maybe temporarily) fixing the money problems will also fix the the schedule and health problem, I'd go with it. Getting another job surely won't fix it.

Also, in Holland, we've got these student loans that are reasonably cheap to pay off. (I think I loaned about 5K over the 2 years that I studied, which I didn't finish) and I'm paying it off by about 40$ a month now that I got a proper paying job. Isn't there something like that? If you're living of a 50$ weekly budget then a small loan like that can get you a long way.