Every single day is a brittle promise. It works beautifully until day twelve, when you're ill or travelling, the streak breaks, and something in you decides the whole project is over.
It isn't. The people who get somewhere aren't unbroken; they're fast at restarting. Missing once is an event. Missing twice is a decision.
Build the smallest possible version for bad days. Two sentences. One phone call. Five minutes with the file open. Keep the thread attached, even loosely, and there's nothing to rebuild later.