if a professor brags about how hard it is to pass their class then drop the class. they should not be proud of being bad at conveying information to students. you’re not paying thousands of dollars to fail. find a professor that wants you to pass.
THIS^^^
My grandfather was a professor and there was another professor in the same department who was notorious for his low pass rate. One time they were talking and this dude was bragging about how hard his classes were, and my grandpa was just like: “your classes aren’t hard, you’re just bad at your job. If your students aren’t passing, no matter the subject, it’s because you’re not teaching.” He never spoke to my grandfather again.