Hello Hamza,
Thank you for sharing your experience with "7 Habits."
As for what course books help with the CFA exam...the study materials that accompany the exam should be enough to help you prepare. When I took the exams that was the entire basis of my study effort. Note: for me it took about 1.5-2.0x the time to study for the exam as what was described. Use your time very wisely and leave yourself 3-4 weeks before the exam to review for and study for the exam.
Best wishes for success!
Jason