I've been the same this summer, I've always been anti-social but I've put in extra effort to avoid people as of late. The young people at church were planning to go camping over a weekend in a group chat and I didn't even reply. I hung out with them after church the last time I went and felt very impatient to leave by the end of the night, all of them are super kind people but the autism is just to great.
I suppose you still have to force yourself to attend social events as to not straight up becoming weird. It's usually fine if you keep a positive attitude. Also if you're jacket GET OUT THERE!!!
This is a bit different this wasn't my situation, while I absolutely have social anxieties myself I actually very much enjoy being with people I care about, I haven't been avoiding them for that reason. But if you don't like social situations then don't do them. I guess someone will tell you not to be like that but if you don't enjoy something and you're happy to stay away from it then why are you doing it? I don't know feels odd telling someone that especially for a church event but why do something you wouldn't enjoy?
I guess the question is if this is something you wish were different or are you content with it?