Maybe you might start with one who you've known a long enough time and can trust will understand what that means?
People don't always reveal their 'true' selves - not everyone knows their true selves (sometimes this discovery starts around 40) but also, I don't owe anyone my real, vulnerable self. Our real self can be more than others are prepared to handle and we might not rally be responsible for each other (while still being respectful). Or maybe tell just a few, it appeals to the neurotypical desire for exclusivity, so it can work to your benefit. Add neurotypical individuals often prefer a sort of fantasy in their social nuances. So, according to some reading I've done, they're never actually authentic, just a sort of "cosplay" version of their desired self.
So long as the individuals in charge are aware you have a different way of processing and understanding material and aware of anything needed or hindering your growth, as this is their responsibility, not your peers.
I'm not advocating masking but respect. For instance, if you're confused, feel at ease to express that. Perhaps you don't over-think but others don't think enough. Don't feel obligated to join in if you don't have to. If you'd rather escape a social situation and hide out in an art room or an empty room or with a teacher no one likes, do it! If someone asks if you're autistic, perhaps you'll feel at ease to say. But I like respecting what people are allowed to know about me and what I don't really care to know about them. We should all be respectful regardless :)
