Who would I send one to?

I have an ongoing list in my head, changing every waking moment. Whenever I'm mad at my dad for saying something offensive or bitching at me, I can see the letters and words type across my memory. Whenever my mom does something enduring, I want to express how much I really love her. Whenever I think of my brothers, I want to tell them how they amuse me, yet how they make me feel so small. Whenever I think about my attempt at love, I could write a novel, nevermind a letter. I want to apologise to the people I've hurt in the past for my stupidity and ignorance. I want to express my anger to others who were ignorant towards me with the hopes that they know better by now. I want to express my lust on paper then feel quenched. I want to express whatever needs to be expressed in an unsent letter, so I am completely satisfied, but that's humanly impossible. It's like I'm squeezing my feelings out, wringing myself dry, only to be drenched with dissatisfaction again.