Miyuki,
A crazy person will never admit he/she is crazy.
So, if u believe u r not crazy, then go and see the psychiatrist
to be professionally evaluated.
Hormonal and chemical imbalance in our brains seems more common
now, because we didn't know of such things before..so many cases
went undiscovered/reported.
As medical science advance, we will discover more problems so we
can find treatment.
Your case is still controllable.. There r many mental illnesses
that r uncurable or even untreatable. Alzheimer's , Pakinson
disease, dementia, autism...etc...
At least for u, u can pop a pill in your mouth to balance
chemistry in your brain.
A psychiatrist is a medical doctor, he/she can only help u if u
r willing to help yourself.
I help out in a school occasionally, there I know of many kids
with ADHD,Some as young as 6 years old. they r on medications to
calm them down , so they do not become destructive/disruptive, so
they can focus and learn.