Hello. I am in an undergraduate math major in an introductory graduate class on integration theory and it has truly been an unpleasant experience. I feel the instructor(who is teaching it for the first time) is pretty much completely disconnected from the students in his assignments and interpretation of our understanding. It is the first math class where I can say I don't really understand how to do many of the homework problems(a handful of difficult problems which are often made up or are on material we haven't covered ironically), which is sad because it is a subject I value and want to learn. I may be able to get out of it with a C but I leave open the possibility of failing. This experience makes me question if I want to continue in applied mathematics. While generally I am pretty capable should my experience here make me question my ability to perform in graduate school? What impact will getting an F have? I have another year to retake the class if I want to(with someone else teaching it, the classes difficulty varies wildly depending on the instructor - had I taken it last year I would have had an A right now). I take solace in the fact the graduate students are experiencing the same thing(and they are in groups passing around solutions via email), so it is not a fundamental defect unique to myself, but that doesn't really solve my problem.