So those people being cold and not talking to you?
That’s how you came off to the people at your last job. Probably why they complained.
Then instead of focusing on the people who responded to you positively, you’re using the people who acted like you as an excuse to go back to your previous behavior.
I think that your attitude to the situation might be stemming from some misanthropy from some past trauma or something, idk. This is something you might want to talk to a therapist about or at least think over and objectively assess yourself.
What type of socialization do you want? Do you actually want to talk to people and have positive experiences at the risk of negative ones, or would you want to be left alone and not take that risk, but instead take on the risk of people disliking you?
Personally, I’d suggest just talk to the people who are nice to you and get to know them and leave be the ones who want to be left alone.