Congratulations on starting your American college life! Regarding course selection, let me give you a detailed introduction.

First of all, you need to understand your major requirements and the school’s graduation requirements in advance. Different schools and majors have different graduation requirements. You need to know how many courses you need to take, what required and elective courses are available, etc. You will then make an appointment to meet with your counselor as early as possible to discuss course selection and planning with them. Counselors are your primary mentors once you enroll and can provide advice and support on majors and course selection.

Next, you need to understand the time and process of course selection. Different schools and colleges will have different course selection times and rules, usually allowing seniors and outstanding students to select courses first, and then freshmen. You need to know the course selection time in advance to ensure that you will not miss the course selection time and have more choices when selecting courses.

For economics majors, some common required courses include microeconomics, macroeconomics, econometrics, international trade, currency and finance, accounting, etc. Elective courses include economic policy, empirical economics, labor economics, behavioral economics, etc. Of course, each school's specific course schedule will vary, and you'll need to check the relevant information posted on the school's website for more details.

Finally, I suggest you choose some widely recognized courses, which are usually relatively simple and easy to understand. Here, I recommend the following courses:

1. Statistics: This is a very useful course that can help you understand data analysis and quantitative methods in economics.

2. Public Finance: This course can help you understand national budget preparation and macroeconomic policies.

3. International Economics: This course can help you understand international trade and monetary and financial policies, and has practical significance for popular globalization trends and professional activities.

4. Managerial Accounting: This course can help you understand corporate financial concepts and accounting basics, which is very important for your future employment and career planning.

It is important to pay special attention to the fact that before choosing courses in American universities, you must make comprehensive plans in advance, and get more information and consultation from the teachers who offer the courses and seniors, so as to facilitate your studies. Better adapt to the teaching methods of American universities and experience better classroom learning.

I wish you all the best in your study and life in the United States!