any advice to deal with groinal responses?

Every time I go to bed late and I’m falling asleep, I suddenly get an intrusive thought of a child’s face and my groinal area always responds to it. It’s such an uncomfortable experience. I am way too tired to try and freak out so I end up falling asleep. The next morning I’m always trying to figure out whether I had the groinal response first or after the thought. I start giving OCD power but it feels like If I let it go, then I’m in denial or whatever. I don’t want to ever do anything sexual with a child. I don’t even feel comfortable talking platonically with people who are 17, much less a child. My therapist says that I have a deep rooted fear that I’m this horrible person and that OCD loves to feed off of it. When you get a groinal response, it makes the thought that much more real. I never want these things to happen. I want to only be into adults. It’s so discomforting and stressful. Especially since I’m hyper checking how anxious I am, and if I find I didn’t really have much anxiety, then I’m like “well if I didn’t have anxiety, what does this mean?” And more questions occur til I end up in a rabbit hole

I’m sharing this bc I need advice or even support from anyone who can relate. If you can’t relate and don’t think you’ll say anything helpful or kind pls don’t comment anything… I’ve been struggling with somethings that’s making me question myself. There has been moments while self pleasuring when I get intrusive thoughts, in those moments it feels like I’m enjoying or even self pleasuring myself bc of the thought. Right after I immediately have an anxiety attack and my HEART drops bc it feels terrible I feel like a disgusting monster :( ppl have told me I haven’t done a bad bc of how intense my guilt and panic are but I keep thinking that MAYBE I made a horrible decision in the moment and the guilt is just realising that it’s just wrong this doesn’t make sense to me because I’ve always told myself that I would never act on this in 1 million years and I’ve been known that these things are wrong so I’m just like constantly questioning myself these feelings and exact same situation has happened two times already I even promised myself that I wouldn’t act on anything beforehand and yeah, I still felt like I did act on my thought during my alone time I’m genuinely convinced that I’m a horrible and it’s even got into the point where I don’t wanna be here anymore and I don’t even think this is my OCD :( tbh

I’m on my period and o think my ocd feels a little worse today… I feel anxious and like something bad is about to happen, like I can’t move or talk cause I’ll freak out or snap and do something. Also I had a gronial response about an SA topic and I feel horrible, I’ve noticed that I do have these gronials as if I’m actually into that but idk if it can happen that you have the gronial and think “oh I’m horny, not about this but I am” is that possible? Idk how to say it… also I think I just want reassurance but I’m also scared…