I’m not autistic, but two of my kids are. I explain to them that nobody is normal, and we all have our own little world in our mind. It’s ok to be different, and make sure to surround oneself with good people. Sometimes people (esecsilly children) can he assholes, but that’s what’s wrong with them not you.
I’m the only severely visually person in my life, and nobody will understand how different the world is for me. That’s ok though because what they do understand is when I need help, and if they don’t it’s ok to speak up and ask for it.