Ok, first of all, do not panic and secondly, you are not alone in your job situation. My workplace has been downsizing like you wouldn't believe, and I'm currently facing both pay and hiring freeze.
I'm also having an unpaid furlough day every single pay period for the rest of the summer. Definitely taking a bite out of my paycheck here.
With all of the expenses that I have, I sometimes wonder what in the heck I'm gonna do. And I live at home by the way.
Just take a deep breath, and keep focusing on your next move. I think the library assistant thing would be great for you. It's low stress, and I think you might have time to do some schoolwork if they'll let you, but that's up to the boss obviously.
And if you don't get that job, just keep trying to get another one till you do. Don't give up, and don't take out a loan. That is just another way to get yourself even deeper into the hole, so don't do that.
But if you feel the need to get food stamps, by all means, go for it. Every little thing can help out.
As for me, I'm focusing on trying to get a second part time job myself. But it has to be one that justify the price of gas. No point in doing 20 hours for minimum wage. It just won't be enough money for me personally. So it's been a bit slow going trying to find something...but I'll get there eventually.
Don't despair, and keep the faith.