Personally, I think being broke and fresh out of college is more common than not for most of us. I barely had two nickels to rub together. It sounds like you should have probably done the math on your take-home pay in relation to your cost of living prior to taking an entry level position in the area with the most expensive cost of living in the country. When I started my first biz out of college I was making less than half what you were making — but I chose to live in the Midwest until that wasn’t the case any longer.
Sucks that you got fired, but rather than publicly rant and complain, a quicker way to get a raise would have been to try and learn new skills to add more value to the org to try to advance, or to apply to something higher paying. Having Yelp on the resume of an early employee would have looked great in a cap table of a startup — especially one in the customer service space. Good luck!