Since this feels like it's responding to the common wisdom /advice to "follow your passions" (and the fear that comes from missing out on this), I recommend rea

Since this feels like it's responding to the common wisdom /advice to "follow your passions" (and the fear that comes from missing out on this), I recommend reading Cal Newport's "So Good They Can't Ignore You" for an alternative mindset which may provide an antidote to that class of worry. (Also, consider that the freedom you gained from what is a pretty good career choice might afford you the free time to discover other things which bring you joy.)