~hugs~ I know you must be under SOOO much stress right now... but don't give up. You will get through it.
First check craigslist (or couchsurfers or something like that), maybe you could find someone with a place who are looking for a roommate...you might be able to work something out shorter term with them (from their point of view, they have an empty room and they are paying for it... someone living there for a couple weeks and then paying when they get the paycheck would save them money).
If that doesn't work, maybe find something short term to do as you wait for your next job to start. Could you go visit family? Extended family? Maybe there is an ex in your past who you have a good relationship with still that might help because they still care about you.
Then, if worse comes to worse, you can always camp it out in your car for a little bit (it SUCKS, but it isn't the end of the world).
Really, you just have to get over this little bump and your life will be back on track

It might seem like things are horrible, but a couple months homeless with a job you know is waiting to start in a few months is really managable (even though, again, it sucks a lot).