I found this very helpful.
What are the stages of a man's life, related to his work and family responsibilities?
How do you prepare for and mitigate the vocational discontent (mid-life crisis) that often arises in the 40s?
What happens around forty: 0:30
Overview of stages of adult life: 1:00
Mid-life crisis, analyzed Biblically: 3:50
What it looks like: 4:25
Preparing for it: 5:50
Retirement at 7:30
Inheritance at 9:00
Aging & Work: The Stages of a Mans Life from Canon Wired on Vimeo.