Is my study method wrong?

Sorry to hear about your SBL fail.

Given that you understood your lecturer I don’t think you need another series of live lectures. You might find some of our on-lines lectures helpful, especially as they are closely alligned to our notes. The lectures are nor very long and might provide variety from just question practice.

I am a little concerned about your third point. Often, but not always, exhibits are closely related to question tasks and it can be relatively easy to see which exhibit is likely to be relevant. Try considering the requirements and writing down next to it a reference or references to the appropriate exhibit(s). All exhibits should be used at some point. Of course, this being a case study you will sometimes have to bring together information from several exhibits to answer a question.

Question practice is vital. However, as a final piece of advice, try not to get obsessed with models. Approach a question first on a common-sense basis then see which model might support your answer or which might help you to formulate an answer. Do not explain models: apply them. Models and frameworks give your answers more intellectual respectability.

HTH.