The life of a Vampire

I live in the dark. My best friend is out of range, my feelings is gone, and my only worry is to keep my thirst in balance. I never die, because no one belives in me. My life is cursed from now on, and to this bitter world ends. The blood which is floating around in the people i meet, is my paradise.
Where should I go? Where should I live? No one worries about me, and I worry about no one. Where did it all start? Why am I one of those who has no love, no friends, no soul? I don't need anything, except for my thirst, which is need to be in balance.