Entrepreneurship/Self Business
If not doing a job then one can start a business or become an entrepreneur.
Starting a business or Entrepreneurship has associated risks. However once successful, wealth generation is rapid.
One sould at least once in thier lifetime try to start a business and get out of the comfort zone.
Those who wish to take this path, there is a lot of information available on
the web. Wish you the Best. Good luck.
Suggested books to read for Entrepreneurship
The Art of Start
Rich Dad Poor Dad