Nobody can ever guarantee you a good grade in the exam 🙂
The way to best make sure is to study hard – by watching all our free lectures (and also F9 lectures if you have forgotten anything from F9) and by practicing lots of questions. Practicing past questions (and learning from them) is the most important thing of all.
If you download our free Study Guide you will find links to all the lectures and suggestions of the best past questions to practice.