Amelia Boone is an endurance athlete and 4x world champion obstacle racer. She’s one of the most decorated obstacle racers of all time and she managed to achieve all this while maintaining her day job as an attorney at Apple.
There’s plenty of other examples of successful people that have moonlighted. Ted Chiang (Technical Writer and Science Fiction Writer) and Henri Rousseau (Toll Booth Collector and Painter) come to mind.
Sometimes I use the excuse of school or work to say that I don’t have time to chase my other goals.
But reading stories like Boone, Chiang, or Rousseau’s breaks the ceiling.