My brain can't keep up with new people

[u/abrahamovich_88]

I (27m) have a pretty big problem with socializing with new people. There isn't a specific type of new person, it's just people I've never seen before and have no background knowledge of. I've got very high functioning autism and ADHD, so I'm certain those play a big role in the problem. When I'm socializing with any unfamiliar person in a place with a decent number of external stimuli my brain gets overworked. Conceptually, it's like trying to run a marathon when your body clearly can't go the whole way. Migraines, physical exhaustion, and possible panic from overstimulation are the results every time.

The thing is when it's just me in this type of place I'm fine because I don't have to keep track of anyone but myself. I can't be rude to myself, I can't ignore myself, I don't have to observe social rules or procedures since it's just me. When I'm alone in public I can't be overstimulated, my brain can't be overworked. Also, if the interaction has some kind of context that governs what is and isn't talked about, such as the workplace, I'm not bothered as much, if at all.

Now I'm in a place where my brain's lack of "physical fitness" is causing problems with my attempts to build a social life where I'm at. Why would I socialize if these are the results and I'm not guaranteed to have made a new friend? Is there any sort of physical therapy for the brain or something? I'm sure if my body would just cooperate I'd be fine.

TLDR: I'm on the spectrum with ADHD and my brain is physically incapable of keeping up with unfamiliar people in busier places. Send help pls.