@dante34
This is a point I have always wondered about, at what stage does a do over story complete?
There is a wide variation. Some, arguably, should be complete when the specific regret is addressed by doing something different. Some which emphasize coming of age, should end when adulthood is reached -- perhaps high school graduation, perhaps college/start of work, perhaps marriage.
A few go to the end of life, hopefully with the MC having being satisfied with his new life.
A couple go heavily into alternate timeline, with the MC going far into science fiction/long life category (e.g. Retreads by Rotedrachen).