Mental compulsions

I just realized that I have this compulsion where i search ocd forums up and down, looking for someone describing the exact scenario/event that im obsessing over right now. Otherwise it’s like i cant convince myself that it really is ocd. Its so stupid because even if I find what I am looking for, I know it is only giving me temporary relief. I was just about to post a description of the theme/scenario here, but I am proud that I stopped myself ⭐️

I’ve been feeling the urge to avoid intimacy or purposefully engage (for reassurance that I won’t give into a compulsion) because of intrusive thoughts and fear that I’ll “check/test” my reactions. My OCD is making me so scared that I’ll purposefully think of a child and try to see if I like it. It’s so complicated but I guess I’m mentally checking if I would mentally check during intimacy. I’ve even envisioned myself checking and it’s making me so nauseous. I know it’s a compulsion like any other but the sound of “touching yourself to the thought of a child” sounds atrocious and vile. I’m terrified I’ll automatically start checking next time I am being intimate. I truly feel so worried. If anyone has gone through something similar, I’d appreciate hearing your experience. Or if anyone has any advice?

So maybe the title wasn't the best to to put it but when you guys start having obsessive thoughts how do you stop them before it turns into compulsions and anxiety?