Week eleven is where this gets tested. The messages have stopped arriving, the casseroles finished long ago, and everybody has reasonably assumed the story moved on.
Staying with a regimen at that point has nothing to do with motivation. It is closer to housekeeping — you do it because it is what happens at that hour, the same way the bins go out on a Tuesday.
Nobody will congratulate you for week eleven. It is nevertheless doing more work than weeks one through three, which had an audience.