Des, my heart goes out to you. I've been through what you're going through just recently. It IS scary! My suggestion is take care of you and your kids, in that order, and then start thinking of a life change. None of you deserve this!
Tomorrow is Monday. Call your Social Agencies and see what kind of help you can get from them.
Surely, there is a neighbor that would be willing to take you to the Food Pantry in your town. It humiliating to ask around for a ride, but if you don't have transportation or change for the bus, there's no alternative.
Once you get yourself and your kids taken care of, you'll be able to breath a little easier so you can think of where you NEED to go from here.
For the time being, you can't worry about anyone or anything else. One thing at a time, ok?
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.