My autistic peeps, I have one bit of advice for you.
Be extremely selective about who you accept social rule feedback from.
Most autistic folks I know tie themselves up in knots, trying to figure out this social rule book that everybody else seems to have gotten, that they didn't get. In fact a lot of the "rigidity" that I see other therapists complaining about can be put down to the natural effects of people trying really hard to find one goddamn rule that will stay put.
The thing is- most people walk around as if they have the one universal, unassailable, common-sense rule book for social interaction.
And they are utterly full of shit.
In the US in particular there is incredibly low consensus about how people should behave. Just go post on twitter about whether it is or is not rude to wear your shoes in someone's house, or as a 70 year old and a 20 year old about phone etiquette. That's before we get into other demographic differences. Don't even get me started on "professionalism".
Neurotypical people get that feedback to, but are, on average, way more able to flag it as either 1) a rule for working with that person/similar people 2) bullshit. NOT as a universal rule they should have already known, that they should feel bad about not already knowing.
The number of things that people actually universally agree on is really low.
So when people give you feedback that the social rule they expect you to follow is obvious, they are often being a total dick.
Ask questions, look for patterns in specific settings, and make sure you've worked on your values enough to have a reasonable ecosystem of guiding principles.
But remember that nobody has that rule book.