Missing personal curses after joining a class

Hi, my problem is that I have used the same account for 2 years, and I had a lot of courses almost done, plus my SAT practice, when class started I signed up for my math class with the same account, but all of my personal courses disappeared even my SAT practice which I have been working on all summer long!!! And I can't even add the same courses that I used to have because when I look at all the courses available they don't show up!

I have already tried getting out of the class I joined but nothing changed, I tried to switched from a Student account to teacher to parent, but nothing changed I still can't see my progress, and I have limited courses to choose from.

Please help me get my progress back!