Introduction of a character. (Yeah Boy)

Introduction of William, a character of mine, who's life I will be evolving around for a while.

My name is William.
I'm currently 22 years old, but I don't really care for birthdays. I suffer from gerascophobia, which, in other words, are a term for being phobic of getting older and aging. I enjoy being 22, but I feel this nausea of fear when I think about becoming an old man. There are several reasons.
I grew up in the outskirts of London, in a small, black house with white windows. It was kind of an old house, and it wasn't well-built. My family consisted of a mother, a father, and 4 siblings. I'm not going to mention them, as I don't have any contact to them anymore. We slipped away from each other. Or, they slipped away from me. I am the youngest of the flock. My mother died when I was younger, and I'm still unsure of the reasons. If she was beaten to death, or if she killed herself. I'm unsure, still to this day…
My father is a psychopath, with a temper that glows red. He used to beat me up, when I lived at my parents, and as well as my mother.
I've never been fond of humans; we are all so alike, and everybody thinks the exact same way. We're programmed to feel, sense, and think. We are made of the same flesh, the same bones and blood. And yet, I can't relate to them. I'd rather be alone. I never had anyone I would consider as a friend, because I'm not interested in human relationships. I've been in love, though. But I never wanted a friend, and I pretty much only care about myself. I had a cockroach as a pet once, but my father found out, and killed him.
My mother was of Asian heritage, and she caused me my black hair. From my father, I got his blue eyes. The form of them is kind of slanted, as I'm half-half. I have two piercing over the top lip, which I got for myself. I'm of average height, but I have longer fingers than most people I have known. I'm severely underweight.
I've been called a narcissist, and I care a lot about my appearance. To be honest? I'm fucking hot. Yes, I am addicted to looking at myself. Yes. I am pleased with how I look. Yes, I'd rather look at myself having sex, than my partner, whoever that might be.
People never really get to know me. Not even my mum. I'm shutting it in, and I don't want people to be close to me. I might get turned on by my appearance, but everything inside is what I hate more than anything in the world. I can't stand being myself, and I hate my actions, my personality. Everything.
At the age of 13, I started shoving fingers down my throat, to induce vomiting. And it has stuck to me ever since.. There's no meal, nothing I can intake, where I don't throw it up. Not water. Nothing. I want to be empty inside, and I will do everything to get thinner. Because if I don't have my appearance, I have nothing. I vomit 3 to… uncountable times a day. It depends. If I have one meal a day, I puke twice. And so it all begins. Once I start I can't stop myself.
I was addicted to drugs during my adolescence. It was of all sorts. But mostly pills of all kinds, MDMA was taken on a daily basis, and I did snort powder, too. I still do it, from time to time.
Around the age of 13, I grew addicted to physical release… I started masturbating, and I did it several times a day. Porn became an obsession of mine, and getting off was even more than that.
 I had my first time with a girl when I was 16. She was my girlfriend, but I never fell in love with her. I felt blank. But I did get my fix, my release, and I grew addicted to bodies. I started screwing.. everyone, actually. Just persons. Girls, swell as boys. My desires flowed over, and I couldn't control it anymore. I fucked everyone around me, and not just persons I knew, but also only had met once. I could fuck 3 persons a day from time to time. Been in several threesomes. Been into weird, fucked up sex. But in reality, nothing ever beat the porn I saw.
I've had loves in my life. Been cared for, and I don't know why. I've only been in love with boys… I guess that makes me gay, but I fuck everything that comes near me.

I lie, I cheat, I fake, I entertain, I fuck, I hold in, I'm not a nice person. Realize who I am and fucking kill me.

Save me from myself.