Take a deep breath. I'm not sure what messed up is but when I hear the words "messed up" with "internship" I think well maybe its not too big of an issue even though we would all like to not make mistakes. At my work, we don't give the internships too much responsibility and every thing is reviewed. So maybe if you could step back and imagine it happened to someone else to see if you could gain some perspective...

Have patience with yourself...if you are an intern you are still learning and you will make mistakes...

I'm so glad you are brave enough to call T and ask for what you need. I'll be thinking about you and know you can hang on till 8:30