The police department is usually more than happy to take you to a shelter. Try to get in early so you know you get a bed. If you can scrape the cash together head to somewhere urban, as there is more shelters there, in spite of the extra violence threat.
Even if family wont put you up, say you had issues with them in the past, swallow your pride and let them help anyway, my brother was the one who called various housing places and did a ton of research to find me a new home. If you have disabilities, you can qualify for special housing services and can get in the system and be supported with a team that will care for you and even, in my case at least, find you a job