To extend what others have said, your "social battery" depletes when you play a persona/mask. Sometimes with neurodivergent people (autistic/ADHD especially) this mask can be completely subconscious and unknown to the person.. it's pretty tricky to learn how to reverse it.
In either case, learning how to be your authentic self without shame is all the fix. Of course this may not be possible depending on environment but it's something to work towards.
I had the "social battery" issue until I learned how to be me. Sadly, most of the people I knew were acquainted with the masked me, so those friends grew more distant but I have since found people with the same kind of "weird" and social situations are no longer draining (at least with those people). It took a couple years but I can't recommend it enough.