This was just a poem I thought of some weeks ago to get my feelings out. 

How did I manage to survive on Earth?

How do I remember how to breathe?

How can I think when all I feel in my head is air?

If all of my thoughts are worth nothing,

How am I still here? 

How!

How!

How!

If I can't do anything,

Why am I still here!

If people can't tolerate me, 

Why am I still here!

Why!

Why!

Why!

Because you are just like me. 

We, as imperfect creatures, are failures.