I (32f) was diagnosed in November 2022. Even though I still live with my parents, I haven't told them about it.
In the past, when I brought up the possibility that I may be autistic, they'd brush it off, tell me I wasn't, and leave it at that. As I learn more about my accommodations and unmasking, I'm finding it harder to spend time around my parents because they do a lot of things that are too stimulating (play the tv too loud, talk too low, not communicate in certain ways, etc), but I still don't know if I should tell them.
My sister says I shouldn't but she isn't the best support because when I tried talking something out to her once, she told me my autism should define me and "don't be cringey" (this is the abridged version of that talk, she said a lot more hurtful things).
My therapist has been a big support and has tried to help me find the pros and cons of telling them, but I can't find any realistic pros. Once, I told my dad that some of his behaviors were harming me (emotionally, not abusive), and he flat out refused to do anything about it, saying he's stuck in his ways. With this in mind, I don't know if it's even worth bringing up.
Tl;Dr. I was recently diagnosed, my parents still don't know, and I'm not sure if I should tell them because I might be met with indifference or some negative reactions.
Any advice or insight is appreciated.