Passed my class 2 first time and class 1 couple of years later first time. I used a company called JCoates they are very good and friendly bunch and will only send you for your test when you are ready! I was bricking it both tests legs shaking on the accelerator and brake pedals and all that! As others have said even if you think you have muffed it up… keep going and drive the best you can as you never know it may only be a minor.