Okay, I can help with this!
I got diagnosed with autism when I was about 14-15 years old, I think I was in high school at the time. Mostly they just had me talk to the school psychologist, get a few tests done (they have names, I just can’t for the life of me remember them! It could help to look into that, I’ll do that in a minute), then we had a big meeting where they said that I was autistic and talked with my parents to get accommodations. Now, my school was very accommodating and also very white, myself included, so it was easier for me personally to get a diagnosis. They also sent me to a behavioral doctor to get it confirmed, but in real life that sort of thing tends not to happen, any of what I just said, especially with children and adults of color and girls. I was presenting as a cis woman at the time, so it was harder to get me diagnosed but we got there. My mother also got diagnosed for autism, my father for bipolar, and if you have any questions it mostly boils down to they talked to a good few hundred (hyperbole, maybe it was about 4 for dad and 7 for mom) doctors and psychologists, and then took a test or two for mom, and what do you know? Autism. Now, I am on the “lower functioning” side and along with my POTS it’s hard to tell what symptoms are what, but I’ll try.
I used to have sensory overloads all the time as a kid, but I barely remember how I dealt with them because now I don’t deal with that sort of thing. I barely get overloaded at all, and when I do it’s more just “this sound is bothersome, turn it off and my ears will feel less like they’re being physically scraped”. I have the opposite of sensory overloads, I get underloaded. I crave constant stimulation because I don’t really feel much stimulation at all, and so if I’m being honest I tend to do a lot of risky things. I used to cut myself to feel something. I also have very bad depression and anxiety, both linked with my autism interchangeably because a lot of symptoms for depression and anxiety crop up when autism is around. I also am terrible with people, I write them well but don’t read them well is my problem. I love writing stories because you can actually figure out fictional people, who they are, what motivates them, but in real life it isn’t so simple because there’s a lot more barriers and variables. So I tend to avoid social situations with non-autistic people, people like me are a lot easier to read.
Sorry if this is going all over the place, I’m sort of just randomly firing off everything I know about myself. Anyways, routine is a big thing too. I’ll cry if I haven’t had at least two cups of tea before 11 and after 10:30. I take showers for exactly 15 minutes each on Sundays. I have to completely lick off a spoon before I take another bite of ice cream. Plans must be made two weeks in advance to follow through on them without panicking. You get the deal. So anyways, routine is ritual, routine is everything and what’s worse than a sensory overload is not being able to follow a routine.
Now, I’ve been getting looser with routine since I’ve been spending more time here, but that’s more out of an anxiety of not getting anything done and people hating me over actually working out routine. And I’ve been really stressed since then!
Anyways, if I were to pick anything shown about autism in media, it would be how absolutely crazy and strange we are, no joke. Show the ugly parts of autism, the parts that make Karens and “autism mommies” want to pretend we don’t exist. And show it lovingly, treat us like we’re disabled, not inconveniences. Also, more weird autistic trans kids/kids of color/physically disabled kids/Jewish or Islamic or Buddhist kids, etc/all of those but adults, show the rainbow of diversity that is autism and don’t use Sheldon Cooper BigBangTheory or whatever as autism. Also, more evil autistic characters where their evil comes from like, being evil and not being autistic. More autistic people in love! I’m certainly capable of love, even if I can’t grasp empathy. I love my girlfriend with the world!
Sorry if those don’t help much. If you have really specific or even potentially offensive questions I’d be happy to answer them!