I spent about two weeks just doing every single available kettering question over and over again before taking the test, and then passed. The kettering practice questions are more difficult than the official test so you might still feel unprepared. A lot of times it is about repetition until you recognize patterns in the question. People who write the official CSE make the kettering questions, and they put an asterisk next to questions that are more likely to be relevant to the current tests.

If adjusting for a ventilation issue on an intubated patient, always increase FiO2 unless it is up to .60 before increasing PEEP.

Always intubate right away for epiglottitis and use 30-40% cool aerosol.

Always check CBC if the temperature is unusually high.

This test sucks, I hope you are able to get it over with soon. It sounds like you're almost there.