... us have been studying for this test for months, even years, and ... like to take an opportunity for a logic lesson, if I may ... is not a sufficient condition for their being competent to give ... a test that was perfect for their strengths).
This is the lamest advice ever, but just keep practicing. Mastering conditionallogic takes a while. Even getting good at conditionallogic in general takes a while. Always keep in mind that your struggle with conditionallogic is not an anomaly.