Failing a class once is a detour. Refusing to look at why is how it becomes a route.

One failure costs you time, not direction. What turns it into a direction is leaving the cause in place, because the same cause will produce the same result in the next class and the one after that. Looking at it is unpleasant and brief. Not looking is comfortable and expensive, and the expense arrives in instalments you will never connect back to this term.

Write down the actual reason, specifically, rather than a general sense that it went badly. Missed the first three weeks, never asked a question, did not do the reading. Then change that one thing in the class you are taking right now.