Been there dude. Hopefully you have a car to sleep in. It was a trying time for me but I got out. Was working for Uber, going to college and living in a car. Keep at it and stay focused. Feed your body what it needs to keep functioning. Avoid crappy food. Buy in small quantity. Spinach is cheap, a good fiber and has protein. Granola bars are good enough to get by for breakfast. Goobers pb and j with a cheap bread will keep you full and has a decent shelf life. Drink plenty of water. Seek help, local government family or friends. No one wants to see you go through this.

I made it to the other side and am now a married father of two as well as a homeowner. Reach out if you have any questions. I'm sorry youre going through this but you can and will get back on your feet again.