You can't take courses in the first semester, but you can take courses in the next semester. It's easy to complete a college course with at least 12 credits for four years. Elective courses are usually one or two credits, and there are also three credits, but they are rare. It doesn't matter if you don't pass the exam at that time. You can skip classes, that is, listen to the classes you are interested in and write your college and student number on a note to the teacher after class.

I am a sophomore (of course I am from Wuhan University), and I have taken seven credits (four courses) this semester. In other words, you don't have to worry about finishing 12. I suggest you take one or two courses in your freshman year, not too many, because the semester is still tight. Sophomore classes are few, so you can take more classes.

Well, if you have any questions, ask your seniors more and adapt to college life quickly.