Side hustles, second jobs, third jobs... Is it impossible for an ordinary person with no special talents to do something flashy and impressive?

A female pediatrician at a certain university hospital..
A boxer as a side hustle..
* You can find news articles if you search for this.
This used to be my dream as well.
Main job: Biology professor or senior researcher at a related national research institute
Side hustle: Martial arts instructor (at a gym)
Another side hustle: Skilled technician (crafts, home repairs, or toy repair)
Reality: Manager at an SME (scheduled for promotion to Deputy General Manager in 2027)
* Not long ago, when I shared my dreams with my former academic advisor, my gym owner, and my academy director,
they were surprised,
and they even burst out laughing,
but they also spoke to me seriously and sympathetically, saying that reality does not work out the way one hopes...