But...but....but.....ARGH!

How will you feel when your performance is being ruined by someone? You prepared so hard for it but the outcome is out of your control. And the worst thing is you are being remembered for all the mistakes that you've made. Sigh....I feel lousy, disappointed, angry and.....you fill in the blanks for me. I know I sound like I'm just blaming others for my bad performance as though I'm not wrong at all. But...But....But......ARGH!