I Walk Alone

I walk alone.
My hearts is made of stone.
I let no one in
Through this thick scaly alligator skin.
But inside this litlle voice of mine is begging to be let out
Tugging and thrashing about.
Looking for an opening.
But my exterior is cunning
And as soon as I find one it closes.
And I feel weak from the unintentional blows
That it thrusts upon me.
Taking away the things that make me happy.