I'm not good with like comforting but I want to say that I completely understand how you feel.
As someone who's been alone for about 6-7 years growing up, no close friends, no close family, getting bullied and isolating myself which gave me severe depression. The constant loneliness is miserable and sometimes suffocating.
I've tried to pretend I don't care but sometimes I feel down when I want to talk but have nobody to speak with and whatnot. Even I recently was looking up ways I could suppress my need for wanting connection and loneliness. Haven't found a method, I will say distracting myself is my best bet, anything that gives me a little joy like watching YouTube, shows, games, art, etc.
Hm, another way is by scrolling on social media. Double edged sword because I'll get videos of friend groups that makes me feel worse but then seeing video and comments of people being really critical, rude, messed up, treating others like crap, etc, kinda immediately decreases my urge to want to talk to others.
I'm not gonna say "you're not alone" since I hear that and it personally goes in one ear and out the other but, I see you and I understand. You exist.
Personally I say I'm existing but not living