Write an essay based on the information and requirements
Concepts from Week 1 (Chapter 1) that can be helpful in your analysis and reflection include socialization, norms (pivotal and peripheral), and psychological contract
Concepts form Week 2 (Chapter 2) that can be helpful include continuous change (continuous renewal), future shock, developmental change and transformative change
You can also incorporate your learning from any of the videos or assessments
For example, the Steve Jobs talk on How to Live could help in analyzing a past change, now that you can "connect the dots" with the benefit of hindsight
https://www.ted.com/talks/steve_jobs_how_to_live_before_you_die
The Steve Jobs talk could also apply to a present change based upon his advice to find what you love to do and never settle
In considering your future change, you might draw upon lessons from the Dan Gilbert talk on the Psychology of your Future Self
https://www.ted.com/talks/dan_gilbert_you_are_always_changing