All required courses must be completed and passed. There are compulsory courses in this course selection guide (issued at the beginning of the semester), and each major is different, so that you can get a degree certificate. Completed all the credits (it seems to be 192). You can get your diploma.

If you feel that you have learned less, you should have many opportunities to make-up exams when you graduate; Contact the counselor in advance, seize the opportunity and don't miss it.