I found some local boardgames clubs and knitting clubs that are quite chill :) [and most people playing board games are either not neurotypical or introverted, so it’s a good place to start having minimal interaction]
On a similar note, being social is a skill we learn over time. Usually, while we are teenagers, we do a lot of social faux pas because we haven’t learned yet how to interact. Since you say you spend a lot of time in your room, it’s normal that it would take you a little training before becoming more of a social butterfly. Don’t be discouraged!
After I moved out, every time I would come visiting back home my cat would casually stroll just in front of the door, look at me, and disappear for the next 12 hours or so, to show she didn’t need me back. I would usually find her back on my bed during the night 🥲 I miss her…