Hello, Billy from Billy and the Sparkling Socks here.
I am here to tell you that as a writer and storyteller, one good way to learn about autism is to read books about autistic characters. As I am only eleven, here are a few recommendations of children's books featuring autistic characters, and most of them are written by autistic authors I have been told.
For teens
Geek Girl series by Holly Smale. The first one in the series is now on Netflix.
You can buy the book here
https://www.amazon.co.uk/Geek-Girl-Book/dp/0007489447/ref=sr_1_1?tag=juliedayautho-21
The State of Grace by Rachael Lucas
https://www.amazon.co.uk/State-Grace-Rachael-Lucas/dp/1509839550/ref=sr_1_1?tag=juliedayautho-21
The Secrets of my Spectrum by Callum Knight (a memoir)
For middle school children
The Emily Edwards books by Laura Holt-Haslam
For 7-9 year-olds
The Rainbow School series including my (Billy) story Billy and the Sparkling Socks
https://www.amazon.co.uk/dp/154264853X/ref=sr_1_1?tag=juliedayautho-21
The Pet Rescuers series featuring my classmates, Lyn and Pete.
https://www.amazon.co.uk/Lyn-Parrot-Pursuit-Julie-Day/dp/1915114047/ref=sr_1_1?tag=juliedayautho-21
(Contains affiliate links)
Happy reading. You can learn different things about autism and being autistic from each book.