Sorry to hear that
I am going to be taking my test soon too and like everyone has asked, I'd be curious as to what gave you troubles?
Did you take any driving lessons? If so, how many?
I'm sure it's hard to say how long it takes to 'pass', my husband passed the first time he took his test, but has only had his licence for about 3 years. He had no clue how to drive before that, so the difference is probably that he learned the 'correct' way. I'm a bit concerned because I have held my American DL for 16 years, and I'm concerned that I'll 'fail' on 'bad habits'. In saying this, I've never been in an accident in the 16 years that I've driven, and I think I'm a fairly good driver.
Chin up though, hopefully when you DO pass it will be all the more sweeter.