Why does OCD worsen with time?

Hi all, I am in need of any advice/help I can get. Over the past year or so, I have gotten a good handle on my OCD. I even achieved OCD conqueror status with the help of my provider through NOCD! For awhile, I was doing really well. Unfortunately, during March/April I experienced some really bad triggers and overall, my OCD has ramped way back up. Recently, I have been hyperfixated on time and my perception of time. I am not sure what triggered it but now I am constantly checking the clock. I am scared that the days are fading away and there is a ticking clock I can't stop. Has anyone experienced this? Is there a way to stop this feeling of doom?

I feel like OCD has destroyed my brain relative to where I was before it. Headaches, worse memory, brain fog, mental fatigue, etc. How scary is that. Then I think "oh it's just 'cause you're worrying about that and it's temporary" Thing is, what happens when the temporary becomes the new normal? I hate this sh**

I have this idea that if i stopped my current ocd it will comeback again in another form. Forexample, when i was 9 by the help of a doctor i stopped washing my hand every 10 mintues but then ocd switched into another theme, which is religious, and when i stopped that it again changed. And now i have prefction and mental ocd. So my question is why bother trying fix something isn't fixable? It takes a while to notice that the thing you have been doing is ocd, double the time to treat it, is there a permenant treatment or is it just tourture ? P.S sorry for my english i'm not from the U.S