I understood that.. since I don't have all the exams and their numbers in my head, I need to know which exam you have and preferably whether you can say for yourself what causes you the most problems with the exam. My memory works quite well, if I can visualize the task, then I usually have a very precise idea of what I have to pay particular attention to in the respective task, with the corresponding car.
Furthermore, we already have a very extensive topic about the exams here. Have you checked there to see if anyone has given any tips? In general, it's a good idea to search the forums first, but I'll try to give you helpful advice if I can.