So essentially I took a class last semester, passed it, but didn’t learn shit because I rarely attended the lectures (worked evenings, class was in AM, used the hour to catch up on sleep). I didn’t realize how important the class was to my major, and now I’m seriously struggling in my current classes.
Have you ever had to retake a prerequisite in order to better understand a subject?
It all depends on if there’s enough space for everyone who enrolled in the class. But the only consequence will likely be that you’re asked to stop sitting in. Maybe more if you ignore that request.