I need a place to live?

I'm 15, and right now, I'm staying with my friend, and my dad's staying with my aunt. We don't have a lot of money. and once my friend's parent's get sick of me livin with them, my dad wil have no choice but to put me in foster care. Unless we get a place to live. Like I said, we don't have much money. But are there things we could sign up for that helps with situations like ours? Like help from the government to get a place to live? I just need some options.