You present an unusually confounding puzzle.
I've thought about it extensively, and I've concluded that there is only one logical explanation. This may be kind of sudden, but I think you're old enough to know the truth:
You are not a human being.
You are probably the sole surviving member of an advanced alien race whose planet was destroyed when their home star exploded. You traveled to Earth in a spaceship as a baby, and your human parents found you in a field, adopted you, and raised you as one of their own.
I know what you're thinking: "Wow, suddenly it all makes sense!" But the truth is that the road ahead of you is long and treacherous as you struggle to overcome your alien instincts and gain acceptance in this strange world. You will have many questions about your true parents, your people, your culture, and your history. This answers will not come easily, because, you know, the explosion wiped out everything (except you).
It is now your sacred responsibility to all those who died to carry on their proud legacy. It is a heavy burden to carry, but I trust that you will find the strength to do so. Good luck!