Edgard:
Good luck on your exams.
You most certainly will learn PhRing if you stick w/ it. I have written this before & will do so forever if need be...Please work on PhRing easy books, books of about a 200 pages.
Having the PhRing course for 1 month & then expecting not only to learn all the steps and apply them, but also expecting B level success is just too much to ask from yourself.
Practice on easy books & get a good working understanding of the system. Then after you are really getting success w/ easy books, you can begin to use it for your course books.
BUT, there's a lot of other pointers in the PhRing course that can be used to help you w/ your school studying right away.
For those out there who have had immediate success.........you are the exception......