Help - Family living in a cold motorhome

Thanks for reading, we are a small family getting back on our feet after some serious unfortunate circumstances. We recently moved from a tent into an old motorhome, but we cannot afford to heat it up, and we haven't been eating properly. We have hope for the future, but this month has been extremely stressful & difficult, so we are praying that someone out there would be willing to help us out. Anything helps.