Always Keep Fighting?

I am told to always keep fighting,
But I have to wonder what for.
See I fought hard and long,
But I'm afraid I can fight no more.

I have no angel on my shoulder,
No one to hear my sad little prayer.
I scream out in my mind late at night,
But no ear to fall upon is there.

I have no dedicated brother,
Who stands steady by my side.
I have family by the butt load,
But not one of them backs my stride.

I have no target mission,
Not even a hint of planned destiny.
I continue to take the blows as they come,
But I feel like it's getting to hard for me.

This battle I fight that keeps on,
I am losing hit after hit.
I try to drive and find my way back home,
But the road is very dimly lit.