Occasional missteps are to be expected when you take an experimental approach to career planning. 

Career plans should leverage your assets, set you in direction of your aspirations, and account for the market realities.

A person with a foundation of knowledge and skills will make more money and most likely live a more meaningful life.
There’s a similar belief in start-ups: technology companies focus on learning over profitability in the early years to maximize revenue in the later years.

If you study the root causes of business disasters, over and over you’ll find a predisposition toward endeavors that offer immediate gratification.