Two ways: we either travel to an island with my brother and his partner (who's also autistic). On this island fireworks are banned pretty much everywhere and we spend the evening like every other night of the year.
Or we stay home and spend the evening like every other night of the year but I'm wearing earplugs and noise cancelling headphones.
Yes, we get asked to celebrate with other people but we decided it's just not worth it a couple years ago.

This, so much. Am 45 and the last few years things got worse and worse. Then the perimenopause symptoms got obvious and I started HRT. I'm still adjusting but I'm already feeling a lot better.