Has anyone else lost the ability to count?

My ocd when washing myself includes counting but for some reason I’ve lost the ability to count even though I only count up to three it’s like I black out and can’t remember where I left off even if I try or I forget the last number I was on.

I recently started doing pelvic floor exercises and I have to do them about 10-20 times each and each motion is like 5 to 10 seconds but now the same thing is kinda happening with me doing these exercises. Because of my ocd it ends up taking me half an hour to an hour per exercise and I only do two exercises. I then bought a counter device which I mostly see devout Muslims is for specific religious acts (if you’re Muslim you’ll know and yeah it does feel wrong) and now using it ive realised how quickly I can finish my pelvic floor exercises.

Also, writing this out now sure if this device counts as some sort of reassurance.