Well in my experience, getting out of your abusive home, does help with the psychological burden of being in an abusive or oppressive environment (evidently) . But it creates the problem of being stressed out regarding economic problems, as well time management issues as now you are responsible of everything, and that's not very nice .
I do not recommend it, as you don't have savings i assume that could leave you being comfortable on losing a source of income or starting a new venture. .
On the meantime, start planning an escape plan, ask a family member if you can live with them, if you have a significant other or good friends ask for asylum. As you already are on SSDI i know it's not enough, but start the conversation with the foresight that you can at least cover your meals.
Its normally a good fresh start as well as mooching of some close friends, asking if you can crash and trying to get of the routine which i know its extremely difficult, at least for me that i also have diagnosed autism, but its trying to get new stimuli that excite your brain. This will also help with the other issue that i responded on the other thread.