Sounds so odd and difficult to me...

Here´s way easier.After finishing Secondary (which has up to five branches,even though there were only three in my school)you have two years to prepare yourself for the Pre Uni exams.If you don´t want to take them,you can study Professional Formation,which prepares you for practice-oriented jobs.Still,if you have studied that and you wish to take a career ,you have to do the Pre Uni exams,but you need a higher mark to choose a career.

In my case,I chose Social Studies,but I still had to study Maths and Economics because of what I told you about my school.Since I oot fairly good grades at both school and the exams,I could apply for the career I wanted.