I may fail in DHA 1201 ....

DHA 1201 is my major course , which is all about fashion industry . It's interesting but difficult because there are too many specialized words for me and it's really hard to memorize all of them . I think I work hard in both class time and outside school hours , but I didn't do well in my midterm and my quiz . I don't know why . I know those answers before tests but I just can remember them in tests ! I'm confused , what am I gonna do ? I can't fail it or I'll lose my chance to switch my major to Graphic design . I have to get at least a C !

I'll work harder , I don't want to fail it and retake it next semester ....!