I got over my fear of talking to pretty girls sometime around my junior year of high school. Having overheard lots of conversations, and from talking to my female* friend across the street, I realized that girls are more like us than not. For example, get 'em talking about sex among themselves and they nasty.
So I decided I would approach girls same as I would a male peer and damn did that work! I could write an essay, but pretty girls are so used to ass kissing that treating them like one of the guys, ya know, normal, grabs their attention. Ass kissers don't present any sort of challenge, they're boring as paste. Don't be afraid to rib and tease a bit! This is where the idiot notion of "negging" comes from, started as normal flirting, went way too fucking far.
Going to stop now before I end up with the aforementioned essay.
* Going to be drug out and shot as an incel, but she was neither a woman nor a girlfriend. "Neighbor girl who was a friend but not my girlfriend" is a mouthful.