When I was your age... I asked the same questions... but there was no Google search back then. You are lucky enough to be alive at a time when asking the questions can be met readily with more answers than you can probably handle.  I think you are on the right track with all your ideas about being passionate about what you do, the appreciation of it, the gratitude. Of course you are going to be confronted with the reality of the KETO diet since it is largely unsustainable, neither good for you or the planet ... but that will be a sign of maturity.Keep going.