The unexplainable pain

Please let me explain how Im feeling inside
I know that its hard, difficult to abide

On the outside, like day, I am sunny and bright
On the inside it feels like continual night

I hide all the pain, all the fear, the despair
Im walking around yet feel nothing but air

Im a failure, a freak, a burden, (a tear)
I truly wish sometimes that I wasnt here

I cannot explain why these feelings arise
It must be my past; I just cant cut those ties

Others have problems and seem to cope fine
I sit and feel empty and dwell over mine

In the darkest of hours I know youll be there
But I cant find the words and I dont think its fair

To express all those feelings and thoughts and thats why
I sit on my own, in my room and just cry