Difficult Classes

When I started the school year I thought I would do great in all of my classes. However, I soon found out that school wasn’t as easy as it was before. My two most difficult classes are A.P. US History and Advanced Algebra 2 with Trigonometry. I am passing Algebra 2 with Trigonometry with a c. In addition, I think I am passing A.P. US History with a high c. I didn’t expect to do this bad when I started school. However, now I realize what I need to improve to be successful in those two classes and the rest of classes.