I’m scared…

Hello my names Max I’m 15 and in my freshman year of high school and there’s this girl… now ik you guys have prob heard that a million times but I still wanna talk about it. So I’ve only been in one relationship that only lasted about 2 months it was super mind manipulating and controlling and it was just a bad relationship and I’m happy I got out of it pretty early on. I’ve also been rejected twice so shit hasn’t been that good for me tbh. But there’s this girl and she’s like kinda nerdy but really cute and I just like her. I’ve never really talked to her and rn I’m just trynna figure out on how to do that. I’m not really scared to talk to her and I’m just extremely scared for my self mentally if I get rejected again (not saying I’m suicidal or anything like that) and it’s like I know if I don’t ask her out I’ll never know like I know Im gonna do it I just don’t know when. I also feel like I’m lonely and just wanting love like outside my family and friends like a relationship love yk? Thanks for reading all of that I appreciate it.🙏❤️(also some tips to start some casual conversation will be appreciated)