Sexual OCD, guilt and this one time I watched hentai

Hi everyone. Just some info about me - I'm a 17 year-old male with a diagnosis of OCD (focusing on racism and sex/fear of being a pervert). Earlier I was watching porn and decided to watch hentai because I remember finding it arousing when I was younger. Turns out the one I was watching had a character of ambiguous age in it (it says "teenager" in places where I've looked to try and figure this out, but I'm worried maybe she was under 18). The thing that scares me is that I found depictions of her in the video arousing (before and I'm afraid possibly after as well I learned that she wasn't an adult). She had very adult features, and wasn't in school or anything from what I saw in the video, but I'm not sure and I'm worried this makes me a pedophile somehow.

I'm also super worried that everyone I know would think I'm completely gross if they knew this, especially that girls at my school would think I'm totally disgusting if they knew. Does this make me a pervert or something? I have no interest in watching hentai again after this because I'm really not interested in watching content depicting minors, but I'm worried that the fact that the character was arousimg to me means that deep down I actually feel that way.