Go to your local food bank. Food banks are often seriously underused programs that are exactly for people in your situation. A lot of people are hesitant to use food pantries because they perceive them to be for people in worse shape than themselves. But if you are only able to pay half rent, you are exactly the person that food pantries are more than happy to help. They are typically staffed with incredible people who often have their own experiences with trouble making ends meet, and these days you can get some very high quality and fresh food. Please, go. Other than that, know that being tired and feeling hopeless is normal, but you can persevere. Just reaching out here is a really hard step that takes a lot of courage. Good on you! And good luck! Internet hugs!!!