I am sorry for what you have been through, and I get what you mean on a number of levels. One thing I have found helpful that may be useful is when I realised that in the NT world, everyone has agendas, apparently. They do not have a concept of people who say things without agendas.
I had a friend who spent years trying to convince me, everyone has agendas, and I d say, no, they don't and give myself as an example, and years on, she said, you actually really don't have agendas , do you?
And I tumbled to it that this was unusual, and by then I realised I was autistic, and so I realised that was a part of it. I am simple and direct. If I was gay, I would say I am gay (side point, as it happens, I am gay) or if I am wondering if I am gay, I would say that. I wouldn't deny it. I did years of therapy where afterwards I realised it would all have gone much quicker and more straightforwardly if therapist's realised this difference and didn't wait and wait and wait for my underlying agendas and repressed stuff to surface.
What was a bit amusing, though not in a good way, in my case, was that when I realised I was gay, the therapist I d been working with for several years on issues about how my family was etc etc turned out to be homophobic. He was suddenly awful to me, made me try to explain about being gay to the whole group, when I knew nothing about it, and they all didn't either, and asked me stuff like, should They be allowed to have children? I left. Newly out, with no support. Thanks, man.
So in relation to therapy, I d say, the NT concept of therapy may not suit us. Though over the years I did a lot of progressive stuff, but latterly I did it independent of the therapy mainstream, through cocounselling, where people witness and counsel each other.
In relation to NTs and their agendas, now I try to realise that most people I speak to will assume I have agendas, and treat me as if I do, because in the NT world, everyone does. It's part of how they are.