Yes, I always show them I can do everything (well I don't show THEM, I just do what I would normally do for myself...
I'm sorry that you were called autistic too... I've got nothing against autistic people and I've done some reading and watching yt channels about autism and Aspergers. Just out of curiosity, I like learning new thing.
However average person has tons of misconceptions about these people and if they think you're autistic they'll treat you like retarded. When I was 15 and wanted to do my first job- delivering leaflets and adverts to mail, I got a call from the company that they don't employ "children like me". Because the driver who brought the leaflets told them I was autistic. He never spoke a single word to me, he saw me like 2 or 3 minutes! He thought so just based on the fact how I look and that I was too shy so I was quiet and let my friend talk. I was quiet because of trauma and social anxiety! And those idiots then called me to announce that! And didn't allow me to defend myself, just refused to give me the job. I guess I could have complained or something, but when you're 15 and have social anxiety you don't know how to defend yourself.

The fact is this incident still affects me today.