good luck mate, you have done well to get a job lined up before you have passed.
my instructor had a big stick in the cab, he used to warn me only twice after that it got sore he he he.
after a while i made sure i got my driving squared away.
enjoy yourself and the training
oh and try not hold your breath too much, makes life a little uncomfortbale when going through built up areas 
keep us posted with you diary