Some lessons are harder learned than others.

[And doesn't Rey know that. It didn't take until seeing the result her actions have caused for her to realize that she had made a mistake. She has made many mistakes.]

Coming from personal experience, you're more likely to net those things by not throwing yourself from a rooftop. [Despite that being the reason why Rey is here.] It's more than just being "social", though. You have to actually want people around. To stay. Otherwise, there's no point.