Nr Fairy,
Good luck on Saturday and I hope you and your passengers enjoy the flight. There has to be a first time!
Two items of advice: Firstly fly at max route altitude at all times because it reduces the chances of upsetting the townies below. Secondly, if things go a bit wrong and you are losing the plot, tell ATC and ask the controller to put you back on the route. If he is worth his salt, and most of them are, he will be only too pleased to assist. They get hacked off with those who are too arogant (or stupid) to ask.