The first step is to try to change sessions yourself. When you are in the course, you may see a button at the top that says "Reset my deadlines". If you have access to that button, you can click it and manually move yourself to the session that begins on a date that better suits your schedule. If you do not have the option to reset you can either just wait until the new session becomes available and then enroll or you can email ssw-mtc-support@umich.edu for assistance.