Hi there, Mark
I sympathise with issue of not being able to leave your obsessions behind when you're at work. I lost my last job largely because of this - ironically, just a few months before being diagnosed and having my executive functioning deficits identified.
I was only diagnosed a few weeks ago (at 45 y.o), so unfortunately, I don't think I have any advice to offer, but this forum seems about the best place anywhere to get those kind of insights! I'll be looking keenly to see how others will answer your question!
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When you are fighting an invisible monster, first throw a bucket of paint over it.