Don't Tease Me Like That!

I keep seeing the light at the end of the tunnel. But the further and further I walk, the more I just feel like it's getting further and further away from me.
And I have moments where that light seems to become a little bigger, and a little brighter. Then, almost as if it knows I'm trying to grasp it, it moves back. Slipping further away in my vision.
I'm gasping for air. My muscles are tired. My eyes are weak from the constant squinting.
I'm scared of the dark.
Is that something to be ashamed of?
When I try to be brave, it all blows up in my face.
I just want to be brave. I just want to be strong. I just want to be happy.