A low score on a physics exam reflects poorly on someone's ability to do well in physics and so studying for the exam and receiving that score is not fortunate at all.
Context: I studied really hard for a physics exam and still didn't get a B, which I need for my major.
Hypothesis: I devoted so much time studying for the physics exam but was fortunate enough to receive a score so low that won't reflect well on my major.

Is the hypothesis incorrect? (Yes, no, or unknown)?