The real first test is the maturity. I remember mine was a disaster and with a kick in the back I became a chemist. I understood later, when I enrolled in university, that studying could lead far, that I did not have to study for others but for myself, for my knowledge, for my knowledge, for my culture, for my growth, for my future ... and so I became a biologist with brilliant grades. Once all the exams were over, they began those to look for a1