friends in jc

hi, it's like the 2-3rd week of JC already and honestly I feel quite lonely. I've had so many people tell me before that jc is the best time of their life with friends, but I just can't seem to find anyone. In my OG group, I could talk to people but didn't connect much to them emotionally. For CG (class), I think it's even worse because im in a physics class and they are mostly guys. The girls in my class seemed nice initially but over the next few days, I feel like some of them don't want to talk to me even though I try to talk to them. Or maybe im just overthinking but I rlly tried to talk to people and maybe im just a boring person... but I have had great friends in secondary school who I could joke around with (my personality) but for reason I can't joke / I seem more introverted in my jc class. There's not many common topics and I really feel my class is so cliquey already. i think I have a fear of people not wanting me and not having friends but I don't know what to do... any advice appreciated thank you!

how were your jc friends? how do I be more comfortable with being alone?