My mock exams turned out pretty good. I actually think that the tests on definition and diagrams helped a lot before the mock exams. Through those tests, I saved up time studying. Instead of going through the definitions and diagrams once again, I just went through some details that were important to know (details that could help me with the evaluation). Thus, I did not waste time thinking of ways to answer the questions on the exam. Thoughts just came up my mind quickly mainly because I was comfortable with the topics already.
As for the revision, I would go through definitions and diagrams once again (including the ones for international and development economics). Once I’ve mastered them already, I’ll dig in to the details until I get comfortable explaining different ideas already. I will try answering past papers and see how well I do on them.