Frustation

Frustration
"the feeling of being upset or annoyed as a result of being unable to change or achieve something."

This is defines exactly how I feet about tonight's bike workout, I am just not getting it, will I ever?

Is it that I don't understand or just that I am not giving my full 100%.

Well from now on whatever I think I should be doing I'll up it!

Wish my luck cause right now I am angry with myself!