First, you should write an application form and submit it to the academic affairs office of your college. After passing the examination, go to the academic affairs office of your school to find a teacher who manages credits and chooses courses (on the sixth floor of the student affairs center), and choose a higher-level course according to your own specific situation. Just make sure there is money in the bank card when deducting money!
This is a bit of a problem. There may be conflicts between class hours and final exams. Then you have to make up the exam directly!