I too have received that "i'm sorry to say you havent passed this time" phone call, and it is a horrible feeling.
however a year later and a change of career, and they are happy for me to go do my phase3 again any time, but while i'm making money i want to stick at it for at least a few more months. fingers crossed the next tests will go a lot better.
The main thing i did wrong, was trying too hard to not appear over confident or "cocky" if you know what i mean? ended up shooting myself in the foot there!
GL in your studies