I dont feel myself with girls anymore i'm afraid of scaring them off

I just dont feel confident anymore with girls, even at a friendship level theres a girl I'm good friends with who knows I like her and now I've started putting distance between us because I cant handle just being friends and I feel like I cant be myself around her anymore not while I'm still in love with her. I over analyse what I'm going to say and our friendship gives me anxiety that shes going to dislike me if I keep talking to her. She still reaches out but I dont want to talk anymore not now at least, I just want to be with her romantically and I cant relax when I talk to her now and idk why