I used to think I was an introvert because I do enjoy solitude and doing things alone. I flourished when I was quarantined in 2020 because I didn’t have to get up early and could go outside and do tons of stuff whenever. When I came back to school and mostly just had acquaintances and listened to too many podcasts I got lonely. I still love being alone and being around some people is draining, but I’m also energized by being around friends and have worked hard at getting closer friends in the last year, successfully. Now I think very few people are solidly introvert or extrovert, and many of the things that “introverts” claim to be unique for aren’t that unique. I do know a couple solid extroverts ig. My (probably) autistic brother’s greatest fear seems to be doing anything alone. Some people look lonely, but aren’t receptive if you try to reach out, so idk what’s up with them.