I’m pretty sure that is not the case and you can think of at least a hundred activities that are more fun, but the exams are getting closer so I thought you could use the time we should be spending in class, practising for the exam. Even though you’ll be the first students to take Certificación nivel Avanzado, some communities are publishing sets of sample tests that you can try for practice. Bear in mind that the format of the tests vary from one community to another, so the exams in Asturias might be quite different from these ones, but practice makes perfect, so it will be good for you anyway.
These are from Madrid, they are not Certificación but Certificado de Aptitud, so it’s suppossed to be harder:
And these are from the Basque Country: