My daughter has social problems. She has a brain injury and didn’t talk until she was 5. She’s 13 now, and she’s different.
The thing that has helped her the most has been getting involved with theater. She’s made friends, and now she doesn’t mind getting up in front of classmates for presentations.
I’d be curious if this would help her some more. She still has a ways to go in her social skills area.
Let your kid be herself. Trust in God.
And as a reality tip, some social conventions can be 'imprinted' regardless of if they make sense to the social inept. Bathing, eating with the mouth closed, etc... are what Skinner's behavioral science was good at.
Being comfortable with large groups? Maybe never. But that isn't the end of the world.
/johnny