My understanding of filling out IMM5669 is that you should
1. answer the question directly: ie. education information under the education section only etc.
2. do not have any time gaps in your answers. so for question 8 personal history they want 10 years of information, make sure 2014-2024 are fully covered ie. all months are accounted for (because they want YYYY-MM) in your listing of activities.
For myself, I organized it chronologically where I listed all my jobs, and periods of unemployment then filled in all the time gaps with any other relevant information (internships/training etc.).