Hmm, yeah, that is a very bleak picture of the disability system and it doesn't look like it will be of any great help to you. Although, I can see from your current point of view where you have no income at all, it does give hope of something more than what you have currently.

We can really only work with what we have in the moment... the things you have at the moment may not seem like much, but they are more than nothing. Your greatest support at the moment is the therapist, so perhaps that is where it might pay to put your energy for now. Work towards stability, grounding, all those things that will enable you to feel more centered and functional in the moment.
ES, I am so sorry that you live in a society that doesn't take care of its most vulnerable citizens. So sorry your country doesn't have adequate support systems in place.