I would say the first step is to do what pioneers had to do..jettison anything that is not necessary or extremely valuable...make yourself as mobile as possible. You might have to live in a shelter, a tent, with friends or family. Your stuff will be a great burden to you and them. Stuff that could be replaced at a garage sale probably should be relinquished. Moving will be so much easier.

Next step I think would be to call on family if there are children involved. Perhaps there is someone who could take you in. Next friends. If you are physically capable, let them know you would do their housekeeping, shopping, etc.

If young children are not involved, say a solo person, I would be looking around for working situations that gave free rent..especially elder care situations, unless person was unsuited for such work.

Fortunately it is summer now. A healthy young or any age person could live in a tent in someone's backyard in many parts of US, if emergency shelter was available for storms etc. We should be raising all our children to see this as a possibility in life..we might have to do this someday and for healthy people, both mentally and physically, this could be an option, especially if living with relatives..remove some of the overcrowding from house. Prepare to do as much outside as possible.

Of course, all bets are off in cases of mental or physical illness or disability...they need more support than is often available.