HELP ME GET OVER A GUY:(

(SKIP TO THE END IF ITS TOO LONG) So basically im still not senior yet, but i am maturing and growing. One thing is im what i am today because of my parents not being able to love each other without lust. They fight, they cheat, they show it infront of me and my brother. I gained trust issues, i became an introvert so im just okay in school nothing too exciting. But as i grew i dated alot, during the corona virus i went on Instagram and online dated. I felt alone, when pandemic went away. I've had my first boyfriend only because he liked me, we were on and off and that destroyed me more on romantics. Last year was it, he got tired he left me. I didnt know how to be alone, i was feeling depressed for months. I didnt move on, i just dont know how to. School came and there was this transferee, half british. I have a type okay, all he gotta be is that he speaks english well but also knows tagalog so whatever AND has to be on tiktok. Anyway i liked him, out of like atleast 10 people in our school since he has looks. I was lucky enough to even talk to him, he chatted me whilst having a talking stage that i had no clue about. Only to find out my friend is talking to him too, idk he wanted casual but he heard i liked him. And that friend also is male centered so she already got a bf but still talked to the brtisih guy i liked. Anyway in September we did end up talking and he courted me, it went downhill in November. I didnt move on just like the last time with my first bf, i only did get over him because of the british guy..and so in January i find out british has a girlfriend already so yeah i didnt overly did it but i still did not move on. In april he reached out and reconnected, i knew he was using me as a safety net. His gf is being distant and just not that constantly chatting kind like he is. I warned him to stop saying he misses me like he has a gf, he still did and i caught feelings so like i fell again as if i had any progress on moving on from him. I gave advices that was really from my heart, that girl is draining him out but he didnt listen. We fought over something, i restricted him cause he wouldn't listen ever since nothing was the same so we didnt talk again, not until may. I became straight forward and sent a video saying "i shouldn't be missing you this much if its my fault why we're over" and i blocked him, he reached out on his dump account like wtf howwill i move on from a guy whos like that. But anyway we had a heart to heart talk and he said he hasn't move on, like he did but according to him what if things were different like he didnt leave. Fast forward we stopped talking and this guy reached out saying they broke up if I care. And shit man we talked again i showed signs that i still loved him and i was overthinking which i was right that he's STILL using me as a second option and he talks to me when its convenient or when his ex gf wasn't there. He made me feel like we can be tgt again. But then again i restricted him and it wasn't the same since. I blocked him and unblocked him. Enough of the background. Basically i just need help to how i can accept that it'll never be me, she was his first kiss. I understand cause thats why i cant move on from my ex bf last year. But what about me? I waited, i was there. I didnt wanna settle for this i told him, he guilt tripped me and i fell for it. Im gullible so yes i just need advice please please, I wanna actually move on, when it's night i miss him i wonder if he's thinking about me. Its like i cant accept that he isnt hurting for me like i am hurting for him, HE is hurting for HER. It just hurts, and i dont wanna be like this when i grow up i donr wanna handle it like this. So please someone can you help me break the cycle of my habit of using guys to get over guys. I just wanna be happy with myself with no boys. Im still a teen and im hurting so please, ADVICEE:)?