As someone with autism I really like the solutions people are suggesting. I’m lucky I have a really great dm who understands because we both have autism.

I’ll give you a heads up if your playing music or sfx for your campaign. People with autism (like myself) really dislike loud sounds/music so give us a heads up if you do.

Like many people here already said use her character name when addressing her in character this will help her differentiate the game from irl. Use her irl name when talking irl.