Fool with roles

Fools always have nails
To scratch their heads with...
They always find trails
To stumble their ways with
They always have arguments
To shut the mouths with
They donate themselves
To others to play with
My friend, what i owe you
My wisdom, to tackle with
But mirrors show everything
I used to be a mirror
And now i realized; 
while watching in the mirror
That i am that bald man...
But i aint grow the nails
to scratch my head with