Each student is given an Advising Guide based on their catalog year. You are locked into the requirements listed in your catalog, unless you transfer to a different major on campus. You can use your Advising Guide to keep track of the courses you have completed, and you will know what you still have left to take. Be sure to take your Advising Guide to all appointments with your academic advisor.
It is an excellent idea to keep a “Marshall” folder with all of your registration receipts, drop slips, payment receipts, advising information, etc.