Why did the weekly count start over from scratch?

Thank you for your time and understanding. Here is an analogy: If I receive wood from my supplier twice a week, I can manage my time so that I process all the wood for the week in one day. I only have one day to process it. This works, but of course it would be better if I had more wood, but then I would have to take time away from other projects. That’s manageable if I coordinate with others. However, if two or three deliveries arrive in one day, I can’t process everything as planned. I have to reschedule; I have too much wood that I can’t process. I can’t just leave 35% of the wood and deal with it later (because then even more wood will arrive). I have to burn all the wood that I can’t process. It simply burns. Edit for clarification..