8 Career Development Tips 

1. know what you are not good at

2. Learn something new every day. ...

3. Become indispensable. ...

4. Engage those around you. ...

5. Read more. ...

6. Maintain a good work-life balance. ...

7. Travel. ...

8. Be yourself, always.

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https://www.roberthalf.com/blog/salaries-and-skills/8-career-development-tips-to-help-you-keep-ahead-of-the-curve

Career development is the lifelong process of managing learning, work, leisure,

and transitions in order to move toward a personally determined and evolving

preferred future.

one view: Personal career development is about life-long learning 

of related skills that could be used as transferable skills in a set of related jobs.

It is important to clearly know one's interests so that there is fun in

learning and working :)