PIP Mandatory Reconsideration and Appeal

I finally read the decision makers reasoning for why I should not be awarded PIP and I found it just knocked the stuffing out of me. The deadline for asking for a mandatory reconsideration on my zero points PIP decision is looming. I spoke to the CAB advisor on Tuesday and I said that the decision maker had clearly missed certain points and the CAB officer said that I should phone the DWP and ask for a mandatory reconsideration but part of me thinks that I do not have the energy to go through that shit again and all the anxiety that goes with it. Perhaps thats what the DWP want?. I feel like that I am giving up but I also feel angry. Part of me thinks I just want to say fuck the DWP and jumping through all there fucking hoops. Why do disabled people have to constantly have to prove they have a disabilty when it is written in medical records and reports often for years?. I feel like I want to say that I have a disability that effects me almost every day in one way or another but apparently it doesn't meet their fucking criteria but I don't want your fucking money anymore. I mean how disabled do you have to be these days to get any sort of support?. These people who make these decisions have absolutely no idea what it is like to live with a disability. I wish someone from the DWP had a brain injury for a few years and see how they get on with it and then they might think again.