You sound as though you have the absolute bare minimum of a case to be considered and worth more than zero points, would you be struggling so badly and hurting so much if you were truly judged accurately? Do you not have any organizations you can explain your situation to and ask for a second opinion that is not attached to the DWP as unfortunately they and the companies who assess often do not listen to what is described or report the truth of a person's life and there should be someone outside of yourself and the decision make's to give you advice. I hope you stay strong and do not believe your only option is to power on through if you cannot handle it.