Who Am I?

I am no saint nor insane,
I am human only by name.
I weep, I laugh, I am humane,
I feel both pleasure and pain,
For it's life, never simple nor plain.

I flow through every vein,
In every beat, in every grain.
In my throne only I shall reign,
My freedom, no one can ever restrain,
My flaws, my scars shall always remain.

For it is what sums up the letters in my name.