We will all die if everybody were part of the health team alone. We may however not die of sickness but some other thing like hunger, negligence of astronomical studies and the ecosystem can leave us cut up in too many disasters. In reality they wouldn't be a doctor in the first place if there was no teacher. This explains the intertwining relationship between passions.
When a man finds himself really happy doing a thing, he most likely spends time meditating on how to do it and develop new and better ways of doing it. And when the mind is focused on a thing, it develops itself to be productive and exceptional in it.
You see those guys we say are talented? They have that reputation because they found out something they can do and they enjoy doing it, so they gave time to doing it and their minds got really developed and productive in that aspect.
This is why many great musicians, footballers etc. didn't look it a few years back. As time wears on the guys gave in more time doing what they enjoyed without paying too much attention to destructive criticisms. As they gave time, their minds gave in to their resolve and they soon became superstars.
What are you delighted at? Put in time to developing yourself in it. Then give it time! What you enjoy doing is likely going to make you enjoy life. Don't stop doing it!
I believe if an activity delights you, it will present light at the end of the tunnel.
@orishtimothy