when is the right time?
The traditional models of career development were quite linear: as people were moving along their lifecycle, their career exploration would happen in late adolescence and early-adult years, the time when they would decide which vocational or academic path to take. Those early career choices would determine their whole professional life. It worked well in a world where jobs were to be kept for life, until retirement.
It is not the case any more. Nowadays, career changes take place several times during an individual life: people switch employers, employers renew their talent, individuals discover new areas of personal motivation as they go through their lives.
At present, you may find yourself in a career exploration phase every few years. It is not extraordinary and happens to many of us.
In the end we all want the same: a career path that gives us purpose and fulfillment.