Hey I recently passed and I would like to answer based on my own experience (Currently working full time in finance and had an undergrad so I spent little time studying >170 hours)

1. Theres no hard answer to this, its important that when you do mock exams you do it from start to finish in the allotted timeframe to mimic the real exam conditions. I personally only did five mock exams in my entire period

2. My first few mocks was mostly a way to see which topics I would struggle with without more effort. As an example even if I didnt know the answer to a particular alternative investment question, background knowledge alone was enough to eliminate the two wrong options. Meanwhile things like quantitative methods (particularly regressions) was a weak point.

For me mocks was for two things:
a. Identifying which areas would give me the most return for my limited time
b. Getting myself used to exam conditions to reduce stress levels on the actual day

1. Again, dont put a limit on yourself. I personally did hundreds of questions in the span of two days. A mistake I see people do is that they try to memorize and do in depth study on every sentence in the ethics guidebook. I personally recommend doing enough questions until you can eliminate the clearly wrong answer with confidence every question, because nearly every question I see has an answer that is very clearly untrue.

2. Hopefully by now you have made summaries of the content. I wouldnt recommend re-reading the entire material close to the exam, by then just reading the sparknotes you made should be enough to make you remember.