Here, the wait is 2-3 years. Is there something like a council on aging to help you? Maybe with emergency housing to bump you up the list to #1?
Are you in a position to get a roommate? The Washington Post had an article a day or two ago on older folks getting younger roommates - often a bit lower rent in exchange for help, always with participation in household chores as is usual for roommates. The article spoke of agencies that vet roommates for seniors -- not government agencies, I don't think.
To read articles in WAPO you have to join (not forced to subscribe) and only get a few articles a month free. I got to read this one because I came to them from the Ukraine via my VPN. You can try it, if you are interested; link below.
One roommate is 85, the other is 27. Such arrangements are growing.