Just keep pushing, apply everywhere. The worst they can say is "no". Cast a wide net. Fast food and grocery stores could get you fast employment, consider looking into temp agencies, although I didn't have much luck with them personally. But go to places in person when you apply and talk to the people there, I feel like that makes a big difference.
Places with high turnover are the most likely to give you something, but they're also the most likely to string you along and not give a shit. And don't let a place fuck you around for weeks or months, either. If they give you an interview, and it goes well, and you don't hear from them for like 2 months, and then they suddenly call but the terms have changed... it's not worth it.