How should I analyze my mock effectively?

After every mock, first review the questions you got wrong and understand why you got them wrong. Then check the questions you left but could have solved, along with where you spent too much time. Identify your weak topics and common mistakes, note them down, and practice those areas before your next mock. This will help you improve much more than simply looking at your score.

Bro from the CAT toppers interviews 1 thing I have learned is that the time taken for analysis should be more than the time you take to write the mock, they do all LRDI sets and read the passages again and answer everything. I guess you could also do this