How do I get a girl?

I’m not tryna make it sound like I’m desperate, maybe I am but the thing is I really want a gf. I’m so scared of talking to girls and I genuinely never talk to them unless they talk to me or smth. Like I genuinely rmbr every female interaction I had this past school year bc they just mean so much to me. I wouldn’t say I’m ugly maybe I am but I’m highly insecure about my looks. I did gain a bit of weight due to binge stinging over stress and I’ve gotten into a bit of a skinny fat physique. My friends say I have a lot of potential and one guy even asked how I don’t have a gf (ig he’s just assuming bc I got facial hair and we are like 17 so I’m 1/1) I have like no girls added and I am genuinely a nobody at school like besides my male friends nobody knows me. I see other kids talking to everyone else and im just a loner. I thought high school would be like those shows where uk a girl would make a move on me or some shit. Idk ig I just wanted to vent.