I'd say also remember that you're steering with your body, not just your arms. If you are going a bit on the slow side (understandable due to nerves) then any oversteering with your arms (ie erratic handlebar movement) is really going to unsettle the motorcycle and give you more chance of a wobble. I but a foot down on the u-turn and failed my first attempt due to this. Lean your way through the cones for the slalom and figure-of-eight, get into a rhythm. Remember on the figure-of-eight to take it nice and wide, you've got a lot of lateral space to work with and not much between the cones (lengthways) so use the width to your advantage. Finally, and this is easy for me to say, I know... but just relax. You CAN pass it. You need to go into it with the attitude of 'if I don't pass this time, I'll just pass it next time'... you have the skills to do it, it's just a stupid test to see if you can jump through their hoops on the day. Relax, and good luck!