I think if you try to study in prep. year you will get tired for the hole of year, if ask me why of course my answer will be the system of coming and going and some of teacher for example teacher of ***** he
usually seelp in the lecture and forget every things he say it,like this pic
and the other teacher of ***** you can't understand any thing in his lecture. finally I hope from you find
a solution for this big problem, So any idea about it ??!1