Korean Mandarin Chinese majors are divided into Mandarin Studies and China Literature. Putonghua is divided into grammar, vocabulary and phonology. China literature is divided into modern literature and classical literature, and mainly studies poetry and novels.
I don't know exactly what to learn in Korean education, but judging from the graduation thesis, it feels relatively simpler than Mandarin. There are many things to refer to. There is a good chance that you can be a teacher when you come out.
Usually in class, it is better to publish the final report, and the most important thing is the graduation thesis. Graduation thesis is really difficult.
Secondly, no matter what I learn, I need to work hard. If you want to graduate smoothly, you'd better not go to college. If you want to improve your Korean, try to find a job in Korea, or make more Korean friends, watch more Korean TV, listen more and speak more Korean.