I realised how unlikable I am

In primary School, no one would pick me to be their partner for PE or any other activity, people would avoid me like the plague. I was laughed at or bullied a lot. Everyone in my class would make gatherings and meetings amongst themselves and talk about how weird I am, how they don't like me etc. The very few amount of friends I had at the time, also joined these discussions.

In highschool, I masked as hard as I could, and watched psychology videos (signs someone likes you or sign someone doesn't). Worked for a while, I felt like I was in control, but then I went into burnout, couldn't mask anymore and developed physical health issues from all the stress (brain fog being one of them), which made makes me more dumb and even more unlikable.

Now in university still can't mask so well anymore. Group Project mates and classmates savings each other's numbers except mine. How people seem interested in getting to know me but after 1 conversation, they look at me with concern and then start ghosting me or don't even greet me anymore. How people never reach out to me first over text, I'm always the one who does. What do I do to be more likable? I feel so lonely. I can't escape, I even have nightmares of everyone ignoring me in dreams or laughing at me. I at least have a few close friends but sometimes i think "what if they don't like me".