Donna, I'm sorry you are going through this...Money is so stressful, I worry about it almost constantly and it's such a huge drag... I have been there myself before what is that saying, begging Peter to pay Paul or something like that? LOL, I can't remember exactly...!
I remember one time going on what I "thought" was a date with this guy. I almost didn't go because I only had about $10 in cash on me and less than $20 in the bank for the next week or so but I went thinking that he would pay for everything...(we were going to a football game that he had season tickets for with his friends.) BUT our first stop was the ATM and he was like, "don't you need to get some money out?" Well, I couldn't even take any out because I didn't have $20 in there which is the minimum the ATM would allow!! So I just pretended and then didn't eat or drink the whole time I was there! Obviously, I never went out with THAT guy again!!!

Anyway Donna, I worked 2 jobs for 10 years!! And even then I was just making it every month. My wonderful wonderful mother (God, Bless her heart!) would show up at my tiny studio apt. with groceries like tuna fish and spaghetti and ramen noodles so I could eat at home. And trust me, she has supported my sister and her 4 kids for years so she was living on the edge too.
It takes a toll on you that is for sure. ANYHOW!! I didn't post just to share your misery...let me tell you what I did finally...I got a job at a restaurant. I started as a hostess but it was a tipped position so that every day I left there with cash, even if sometimes it was only $5 - $10 bucks if I worked the lunch shift. But that money paid for food and gas and kept me going until the next paycheck. I know Applebee's tips their hostesses this way plus you get the minimum per hour in a paycheck every week. I don't know what other restaurants do it but it might be something you can check into. The cash is reassuring to have, especially I know for gas in your car and some cheap food when you are hungry....And the work is much easier to do than waitressing actually. Just an idea...Hang in there. Maybe keep looking for a new job online every chance you get...It's good to keep your feelers out anyway, the perfect job way be coming your way any day...
Sorry for the long post but I sincerely feel for you and understand and have been there myself (and still am! Who am I kidding?)