Daily
Could appear the next day, especially if you left some activities undone.
Could appear the same day if you complete everything, as a way of doing #63.
Weekly
Monthly
Yearly
Ideas:
Section where you can view your retrospectives for all the present periods.
Prompt when a period changes, so you are reminded to view the retrospective.
Retrospectives should be more than data. There should be simple choice questions for the user so it can get recommendations for changes to make in their goals/activities.
OliverLSanz
commented
2 years ago 
They could be:
Ideas: