I don't think you're a fraud, it's hard to get going on this and you are very brave to come here for support. Try not to put yourself down! It's just great that you came back.
It's a fantastic start to not have anything in your house. Is there someone near you who can help? Maybe you could ask them to keep your money for a few days and go grocery shopping with you. Don't mind the healthy food just yet, get anything you want, chocolate, ice cream...
Break the routine by being nice to yourself. Take a shower at 6, put on your nicest clothes, take a long walk at 7, put some headphones on to listen to your favorite music instead of your own thoughts (read on SR about AV, your alcoholic voice), visit a friend along the way maybe?