I feel very sorry for you OP, I think you've been managing around things for a long long time, and feeling terrible all the time. Depression. Anxiety. Now finally here is the diagnosis and you can start to unwrap it, you're not a horrible or inflexible person but someone who has always struggled.
However there's a long part of the journey still to go, you and your family coming to terms with your real self and working out how you make accommodations for the world and how it makes accommodations for you. It isnt easy - these sort of painful occasions where everyone doesn't get it quite right, are quite usual.
Your daughter may also be ND by the way, or may not, in any case she's on her own journey to find out about it.
I think you should seek support from therapy or other reputable support groups to help you work out your own new boundaries and how to engage with other people about it all. That's not the same as "always getting your needs met at others' expense" but it also doesn't mean "just shutting up and masking" like you have also always done.
I don't think there is anything wrong with sending your DH resources to read. It's good, why wouldn't he read them and understand this important thing for you? It just takes time for your family to absorb the implications. They don't sound specially caring or thoughtful but (like many posters on this thread) they haven't really thought about it before, and impatience and disbelief is a common first stage. It is a learning journey for them too. I would lower your expectations for yourself and family for a while. Just do less, or do things more slowly, or whatever you need.
One of us was diagnosed just before a holiday, it was the weirdest holiday ever, as we were much more shocked and surprised than we all realised. As it sunk in, all the normal things we used to do had to be revisited and thought about in a different light. It's not that "suddenly a diagnosis stops you doing something you once did". But when you are aware of what your feelings and responses really mean, often you can't just carry on as before.
You can't snap back to how you were, the knowledge does change you. Like ...when people on here realise they are in an abusive relationship, things they were doing and putting up with from their partner are plainly revealed as intolerable and they can't go back. Or realising that parents are toxic, or something like that. Not perfect analogies but I'm trying to express the idea that you can be mildly and subconsciously aware something is painful, and do it for years - but when you learn and fully understand that it harms you, and why, you simply can't block out the pain and distress after that realisation.
However you also can't snap straight into a "new normal", for the family, it takes a bit of trial and error. Good luck x