Hello, my name is Aiko, I'm from Japan and my question is are you good at taking tests?

I suppose I'm good at taking tests because I work efficiently and I don't spend much time with it but I think that is the problem I have in my life because if you want to be a master of something you shouldn't study efficiently. You should be fanatic about it and then you should put one hundred and twenty per cent effort into it and that is something I haven't done so after taking tests and passing them, I don't have much left with me except just qualification.