Help Me overcome this

Hii, I've been really insecure about my looks I used to think that I look ugly but I pulled a girl who is veryy pretty I mean 10/10 whom I use to consider out of my league. I use to think that no girl will have a crush on me just by looking at my face but one girl who is into kdrama had a crush on me and many girlss called me handsome. But I've been looking down upon myself I still think I look bad I regularly open my phone camera take a video of myself from back camera and look at myself Its reverse narcissism looking at myself I think what girls find in me cause they call me good looking. I'm scared to take photos cuz I don't look good in photos can't make a face while posing. Help me overcome this insecurity plss 😭🙏🏻 I don't want my relationship ti get affected plsss helpo mee. I don't wanna suffer because of this (I'm 17 btw pls don't joke about this )