I cant get rid of a memory thought

Hi My OCD Friends.

I'm dealing with Ocd for more than 10 years... So I pretty much had it all already.... Hocd, contamination, etc etc... All kinds of ocd stuff during the years.

The fact is: everything always came and eventualy leave from my head.

But i'm stuck with this memory of a silly stuff that hapened when i was a teen, and the thought Just Do Not Leave From My Mind!!!! I tried everything already...

Not ruminate... Ignore... Dont give attention... But it never leaves

I always feel this thought is there, and that i really need to ruminate over and over forever

Im desperate. Thats the only ocf stuff that still didnt eventualy leave me alone... Its been more than 9 months already with it

What Can I do please

Can you be more specific?