Personally, I found the 90 Dayish mark hard as I'd slipped/ relapsed around that time previously. So I can relate to that feeling of being "jinxed" or something.
I stopped counting days and focused on my program daily, what was my new routine, keeping a journal, learning different recovery methods....just immersed myself in learning about recovery and it's tools, rather than just counting days.
It's so much more than counting days now - for me, anyway.