Once you've reached that point, you can no longer afford to have pride. You have to do whatever it takes.
You have to reach out to everyone you know for a job. You have to accept people's pity and take whatever you can get.
If you don't have marketable skills, you need to switch to a low-ethics industry - It's less competitive. Find the jobs are considered wrong or unethical and which no one else wants to do - Those pay the best.
When I was going through a hard time, I worked for a gambling company and made a ton of money. Making money feels good.
My philosophy is that if you're a poor person with no savings, you shouldn't worry about how your work affects society; it's not your responsibility - Let those who are wealthy worry about that; they are the only ones who actually CAN do something about that. You do whatever it takes to get the money into your bank account. If society gets worse, then you have to get worse with it.
If society degrades to the point that people are killing each other, you have to be prepared to fight for your survival.