Single moms

How do you even survive?? I'm 24 with a 2 & 1 year old and struggling bad. I have a background 2 felony's) that are keeping me from a good job. I don't get child support, and my car just broke down and have to buy a new one (8k) to fix mine. How can you afford rent, gas, food && a car payment??? I'm afraid we're going to end up homeless and I'm at a loss. I'm a waitress at a bowling alley and barley bringing in money and I can only work days due to no baby sitter for nights and car issues