the most important thing that i've learned from my previous time spent homeless is that this is a state where trust is impossible.
you cannot meet friends when you're homeless.
you cannot trust the kindness of strangers when you're homeless.
and, you do not want other people to know that you're homeless, when you're homeless - especially not other homeless people.
when you're homeless, everybody you meet is a potential thief, a potential thug and a potential rapist.
you consequently do not want to stay in the same place for more than a few days, lest you draw suspicions to yourself. and, whenever possible, you want to take yourself to areas that are away from other people, as they can only possibly do you extreme harm.
homelessness is a condition where extreme paranoia is a precondition for your own safety, and naivete is a one-way ticket to certain death.