Should school exams be abolished?

Today, exams are one important thing to determinate the quality of each student. 

On the one hand, many students are afraid and scared to do exams. For this reasons, teachers and parents should give us some keys to overcome this problem. Parents should do the same too.
Furthermore, if yo had a bad day the exam would be also bad. But, if we only did one exam, it would be really bad, because your marks depend on only one exam. The problem starts when we have several homework and we also have exams. We don't have time for all: the students have a lot of extra activities and teacher ginve too many homework every day. 

On the other hand, the exams are the most important way to determinate the quality of each student. For the teachers it is easir to determine the mark when the student does the exam, because teachers know if we understand all the syllabus.

All in all, if we hadn't so many exams, we would have better marks at school. If we hadn't exams, we wouldn't study for any subject.

Therefore, exams are good for the students but not in excess.