How to make a one-year study plan for a difficult exam and remain motivated throughout? In a year, I will be taking a difficult entrance exam at a renowned postgraduate school. There are many competitors, most of whom are smart. Despite that, I'm aiming at becoming #1 in the exam, and that's why I have started preparing now.

I have interviewed a few top candidates of the past years and already learned which books I should read and how much I should study every day.

I think that learning more about planning would help me a great deal. But those books on planning and goal-setting mostly focus on reaching financial goals. I have not managed to find any books befitting my situation.

Another thing is that, because the duration is quite long, I'm afraid that my enthusiasm may start weakening after a few months into it, no longer performing at my best.

So, here is my question: How can I a make one-year study-plan for myself, and remain motivated in the long run?

Also, any suggestions about books, software, etc. that will help me reaching my goal will be appreciated.
I would recommend you not to rely upon external entities for motivation. Rather then relying upon just some books and software, practice "Self Motivation".

Each day think about the happiness and satisfaction that you will achieve once you got an admission in the targeted postgraduate school.

Furthermore, browse through the list of notable alumni from the same school and make a target that you will also feature in the same list some day. 

It will encourage you to put 100% effort each day without losing excitement.