Which campus are you from? Our SC is like this, F stands for autumn and S stands for winter. Y is usually a summer course, and there is basically no curriculum. You can take as many credits as you want a year, but taking three or more courses a semester is a full-time student. Generally, students have four to five classes, one class has 0.5 credits, and four classes are a little easier. If Class Five is a liberal arts student, it will be busy at the end of the term, and Class Six will be a little more. And this year, I found that some majors simply can't add six T-T classes. There are five classes in general business freshmen. But if you want to graduate on time, you have to take about ten classes a year, depending on your major. In addition, freshmen in our campus should take at least four to four and a half credits, that is, more than eight classes. Sophomore to junior needs more than 9.5 credits. I'm not sure if the lab counts as credit. It seems that some subjects have been divided.
Ps: You can check the credits you need for your sophomore, junior and senior years on the school website, which will give you more accurate information.