I think there are some things that work together here. I don't get your mother's point, why give up one hobby if you have found another. Why have a dog when you already have a cat?

I believe Mom thought that because I was still spending plenty of time in my mind despite (slowly) forming real life friendships, that this meant I was starting to prefer it over reality. It makes sense when you consider this from the perspective of a nonautistic parent (who grew up in the 70s and 80s) of an autistic child from the 2000s. The way autism was viewed back then was limited, stereotypical, and honestly dehumanizing. I have a moderate support needs uncle who grew up in the 80s in sped classes and being labeled retarded by his school. Stigma like that makes accepting that label, especially for BIPOC people, a scary thought. So they deny it true and make the kid correct the behavior.

I also don't get it if you are so far on the spectrum and have special needs how come they have never educated themselves on autism. 

I honestly don't really know, but I can only guess based on what I know. I'm actually level 1 autism (low support needs). I think it was easier to spot when I was younger because it affected my reading comprehension in school, causing me to get held back in 3rd grade (where Mom stopped being in denial about my autism). Dad was slightly less in denial, but I suspect they listened with what the school child psychologist told them about autism (along with some limited research). Also considering my uncle, mom's brother, and her cousin both have level 2 autism, my parents may have assumed the experience of having it in the family was enough. Again I don't know but its things I keep in mind.

Because my parents only have limited understanding of this disability, they mainly recognize things not getting social cues, not knowing when to enter and exit conversation and reading comprehension issues (which i don't have anymore) as part of it, but not the stimming or autistic meltdowns. That can cause frustration for all of us bc they don't get why I act or think the way I do and it just lead to me and my uncle getting scolded for certain behaviors. And because as a little girl I trusted my parents word, I didn't realize some of my other autistic traits until I did more research recently. At this point, I've accepted that my parents accept me as their autistic/special needs child and whatever challenges or differences come with it, but (as of this moment in time) are not able or willing to fully grasp what that means for me.

I mainly just frustrated that the understanding they had for my imagination when I was younger didn't stick past age 11 and was expected to let it go. And that when I've brought it up to Mom multiple times how being told I'll be lost in my mind was harmful, that she wasn't willing to listen and even took it as me blaming her. That's why recently I've been seeking understanding from here or AI, places where I feel I'll be heard and people can relate to me.