My bf was recently homeless in Boston/Cambridge. He stayed mainly in Cambridge in a shelter that let him stay six nights, then he had to leave for 4 nights and was on the streets. I know of the Pine Street shelter in Boston... they probably have lots of resources for you there as well and can help. He learned of where to go and how to survive by talking to people and those whom else were homeless along with him. Do you have a case worker through your SSDI? They could also help point you to resources. I am so sorry you are in this position! ((((Hugs))))