Be patient with yourself and listen to your instructor - they'll have seen it all before and will make sure that you don't run before you're able to walk. Very few of us get everything right first time while learning, but remember that if somebody glares at you if you make a little mistake such as stalling the car, they'll have been in your shoes at one time. One or two things may seem daunting but I can assure you that one of the best things is finally doing it properly and not even realising until a little while later. :-)
Good luck and keep us posted!