Oh Lilyflower, that post was eerily spooky - I could have written most of it from my own experience, including the feelings and reaction when I failed my first ever exam at University!
One thing I would add, and that I am still struggling with, is the overwhelming feeling of shame I have that accompanies any kind of 'failure' - real or imagined. I am trying to kick the label of failure I put on myself, to learn that to fail at something doesn't automatically mean I am a failure!