How can I personally help the poor and suffering? I am a sopre who lives with a 'middle cl' father.

I feel tortured in my 'middle cl' home. Truly, I feel as if I live in some ungodly luxury. We are never in need. The fridge and pantry are always stocked, often with more than needed. I am overfed. I want to sell my possessions, including this laptop I am typing on. I received this as a Christmas gift, and I have qualms that anyone would spend that much money on me, when I am overfed, while others are dying. I continue to receive more and more possessions. My father discourages me selling things and will not allow me to give away certain things. I don't want to just give away money to a charity. I want to personally help, privately, on my own, without anyone else's knowing. I want to help in my own ways. If I could I would want to provide shelter, a place to live, to eat less and give more, to value others' lives more than mine own. I am hindered by my father, whose house I live in, who will not allow me to speak to homeless and poor that I don't know. . .what can I do?