Trouble not engaging

I’ve been stuck in this cycle for the last month or two and am not sure how to get out of it. Basically, I will work on ignoring the thoughts and not responding or engaging plus limiting/completely eliminating compulsions. After a week or two of constant work, the amount of intrusive thoughts in a day goes down. The anxiety each thought causes also goes down with some, but not all, thoughts passing without notice like they would for a normal person. The thoughts that do stick cause anxiety and make me want to ruminate or do other compulsions but I make sure to limit them. After a bit, I’m in a pretty good head space. This is usually when it goes down hill. I’ll start to question if I even have ocd because some of the thoughts (once again not all) pass without notice. The difficulty resisting compulsions goes down and so does the anxiety, only increasing the questioning. I spend a while questioning if I’ve ever had ocd in the first place and then something sets me off or the questioning itself becomes a trigger and I get stuck back into the same ocd cycle with constant rumination, anxiety, and other compulsions. This lasts for a week or two before I know I need to stop and try and work hard to get back to ignoring the thoughts. And the cycle just restarts over and over again. Does anyone have any tips to stop this from happening? It’s really harming my recovery as every few weeks I dive back into the same negative place I was.

I’m trying to let them pass not engage nothing , trying to compusle but the thoughts won’t leave. My brain keeps telling me I should stab my dad for not asking if I’m okay after the death of my ex …

I’ve recently been having the spiraling intrusive thoughts coming up out of seemingly nowhere. Well not exactly nowhere, having some relationship issues but the thoughts will just randomly show up when I’m clam home reading a book.