Module 1 & 2 Self-evaluation

after the study of the first two modules, I did the self -evaluation. Unfortunately I got 50%, not really good I reckon, and the most of the mistakes are about the short answers. therefore, for the later studies, I think I need to spend more time on the readings, for the deeper understanding. sometimes things are just like this, you think you have understood it, then you got test, you got failed. so there is no other choices really, and just need more time for deeper reading.