Is it bad that I'm a dumb university student?
It's bad that you think you're dumb! Do you go to all your classes?
Usually I do.
If you think that you aren't doing well in school, you should consider studying more. If you study more, you probably do better in school.
Nah I'm only kidding.
If you are studying and still having trouble with your courses, you don't have to joke about it. There are tutors and teachers aides that who job is to help people in that very situation!