Well, the other users have said already how to remove an account, however, I would like to say something personally to you.
I see on your perfil (and I don't even know if you'll bother to read this after you eliminar your account) that BlindBandit92 is asking why you're leaving, and the reason being "being nice gets you nowhere". That's partially true, I'm afraid. Being nice will get you nowhere...in some situations. Can I personally guarantee that you'll be recognized and treated nicely por being nice to others? No, I can't. You don't have to be nice to be recognized. You don't have to be nice to be treated nicely por others. You just have to act like your true self, like the person you are alone. Some people might not respect you, but a handful of others will. I can't stop you from leaving. I can't make you read this either. All I can say is good luck to you...you're gonna need it.