learning to casually flirt is hard! And you can’t learn it without trying and failing a few times… It was scary for me too. I agree with others that spending more time accepting and loving yourself would be beneficial. Another thing that would be beneficial to accept is chance of rejection. It’s not personal and also not a big deal if the person that expressed interest then moves on. I’ve made a mistake a few times really inflating my expectations and fueling my interest and then reacting very poorly to rejection, so that’s another thing I’ve tried to improve.
If you work on these barriers and take shots, you’ll get some practice and improve, and over time you’ll definitely have at least a few successful interactions which will be immensely helpful.
I do get it, that’s why I live in Europe. It’s just shocking to read about such cartoonishly evil treatment of humans.