Please help!!!!!

I'm so sorry to be on here again but I'm freaking out. (POCD tw) something happened just now and I'm terrified out of my wits. I'm a 17 year old bi girl and I was scrolling through Instagram when I happened upon a picture of another girl from a self care account I happened to be following. I looked at her and thought, "She's pretty", but then I got an uneasy feeling of "hold up, what if she's underage?" Nowadays whenever I find someone attractive but I don't know who they are I always get worried because of the POCD. So I checked this girl's FAQ and it turns out she was flipping fourteen years old!!!!! I was repulsed and immediately unfollowed her account but the damage was done. Did I just find a 14 year old girl attractive??? It makes me want to choke. I was almost certain she was an adult until I checked her bio and now I'm freaking out. Does this say anything about me?? Please help I don't want to be a danger to others and I want to throw up.