[Collective Intelligence] What can i parepre for my life after retirement age?

Hi, I am office worker in south korea

Nowadays, i worried about the life after retirement age.
Normally, the retirement age is around 55 age in my country
Even though i need the money at that time, i can't earn the money any more
Because it is difficult to get the job at that time.

For the future, many office worker prepared the certification such as construction safety, quality engineer etc.
I think there are many things without this
But, my thinking is limited

In the steemit, we can share the idea and advice like collective inteligence
I believe the power of collective intelligence

I want to know the advice from you
Please write your experience or thinking in the below

Thanks!