Need some advice sorry - PIP mental health

Hi and to begin with i really appreciate this being here,
I'm 27 years old and suffer with depression and OCDs and was diagnosed with aspergers as a child, ive got so many problems ranging from not being able to touch red meat, getting manic whenever something feels too difficult, having to put things on the floor so it feels cleaner, touching things an even amount of times and having to have things even or it drives me crazy, everything seems so difficult in comparison to how fast and easily other people do normal things, i have light switch problems as well where i have to flick them on and off an even number of times and look out and in the room an even number of times it drives me nuts and have had it all my life, im really bad with people and come across as offensive easily and hate going out because i find it really hard because it just makes me too anxious, i think people are watching me but i know deep down nothing is wrong but cant help it, my nan and my partner help me with my washing and my cooking and i get help with taking the right amounts of medication, i dont know how i would cope alone.  i had DLA enhanced rate of daily living all my life and then was moved on to PIP for 3 years without a problem and 2+ years in i was advised by friends and family that there was a change in mental health and the mobility element, so i rang them up with my partners assistance which i found really hard and confrontational, but i said the truth about everything, and she told me that i should do a new application, but ask them only to look at the mobility part of it as nothing of my daily living has changed, she said i wouldnt lose anything but then did a statutory speech on the phone i think which contradicted what she said.

i did my new application practiclaly the same as all of my old ones, as nothing seems to get better, it just gets worse and some OCDs simply change but dont go away, i went to an assessment and was really nervous, i couldnt wait to get out of there, but again i told the truth about how i struggle in day to day life.

my PIP was cut off without a letter in the post, and i have been so confused, they ignored my doctors letters and a case manager said i didnt "look" disabled, there were a lot of contradictions in the whole thing, and a lot of them lied and ignored what i said.

i raised a complaint and put a mandatory reconsideration in and i got a call back from them around 2 weeks later, a kind lady telling me that she apologises and can see that there are clear contradictions and told me and my partner clearly that a lot of elements had been "overlooked", she said she would look into it and get back to me.

when i got the complaint answer through the post, they completely ignored the raw elements of the complaint and when i told them that they had already admitted fault, they said they couldnt find the call on there systems even though i told them the exact date and time, it made me feel gutted and betrayed, another case manager said that my doctor said they were supporting me "in" and not "to" and that is why they wouldnt use the letter as evidence, and others stated i didnt look ill or simply ignored the fact that i cant cook for myself and do many things, and they just scored 0 on all of it.

i feel really let down and ive always been honest about my problems, i dont know why they would ignore 3 doctors letters supporting me and the fact that im on medication that helps me with the manic issues and ocds/sleep problems/depression that i have, and at the same time a lot of this stuff works, it also pays a toll, for example makes you feel really tired, but it is worth it if that ball of anxiety sitting on your chest is squashed down a bit just for an hour or two.  if that makes sense? sorry about the really bad explanation above any help would be greatly appreciated

i currently am waiting for a PIP tribunal hearing, and have sent more supporting evidence from my mental health team.