This, rather, is the fasting that I wish: releasing those bound unjustly, untying the thongs of the yoke; Setting free the oppressed, breaking every yoke; Sharing your bread with the hungry, sheltering the oppressed and the homeless; Clothing the naked when you see them, and not turning your back on your own. (Is 58:1-9a)
https://bible.usccb.org/bible/readings/021624.cfm
Faith (and fasting for that matter) is never about us . . . it’s always about others. Catholic Social Teaching (the corporal works of mercy in action) is not optional . . . it is essential to loving God and loving our neighbor.