Similar situations may be a sign that God is trying to work a certain issue out of you. When someone performs poorly in a grade or in a class, what happens? They must repeat that class. They may have even attended class from beginning to end, but the performance was not good enough. Anyone who has had an experience such as this knows how annoying it is. The bottom line is when we go through the experience again, something must be done differently to reach success.
If you feel stuck in the same old place, you may need to do some evaluation. God may be trying to show you something. Schools don’t let failing students advance because they know they will not be successful. A student can not do Algebra until they learn Addition and Subtraction. Take a good look at yourself and see what you need to do differently.