Complacency and a fire for constant self-improvement seem to be diametrically opposed.
The drive for self-improvement spurs us on to always be better than we were yesterday. It pushes us to keep fighting, keep training, keep working for that next goal. People who are particularly driven by a desire for self-improvement tend to be very ambitious and the heart of ambition is a hunger to improve or to succeed. That ambition makes a person work hard, but it also ties their mood to their progress. They always want more and they’re often not happy until they get it.
On the other hand you have people with a high sense of complacency. These people are happy with what they’ve got almost no matter where they’re at in life. Their happiness is tied to appreciating what they’ve got rather than with getting something else. This sounds nice in theory, but complacency encourages stasis – if things are fine how they are why should you work for something better? People who are too complacent run the risk of living a life dictated by others rather than the one they actually want to lead.
So how do you find happiness while still retaining your motivation for self-improvement? By focusing on progress rather than position.