First, please read Book One of The Meditations of Roman Emperor and Stoic philosopher Marcus Aurelius (link below).
Required Reading:
Meditations (Book1)
Optional Resource:
Background information about Stoicism
https://plato.stanford.edu/entries/stoicism/
Additional background for reflection: a philosophical perspective on gratitude…
"Aware only of his own satisfactions and his own happiness, hoarding them as a miser hoards his coin . . . the egoist cannot be grateful. Ingratitude is not the incapacity to receive but the inability to give back--in the form of joy or love--a little of the joy that was received or experienced. This is why ingratitude is so pervasive a vice. [Ungrateful people] absorb joy as others absorb light, for egoism is a black hole."
Sample Solution