While I do think there are several unnecessary positions created just so people "in the click" can get a hefty salary, college is supposed to be an investment, not a place to stop by whenever you feel like taking a class for funsies.
I spent two years going through nursing school, and I've got another three and a half in front of me if I wanna become a nurse practitioner. On top of my 8 hour classes Wednesday and Friday, I also have labs, clinicals, and study groups. Not to mention I have to do all of this while working 12 hour shifts at a hospital and supporting myself. Yeah it's rough, but as hard as it is, I know that I have to work hard now to relax later. If I accomplish my goal, I could be making $60 an hour, which would put me right above a six figure yearly salary. That's my incentive to keep working hard.
I know college is tough, but if you struggle in a class, you're just gonna have to adapt. Difficult classes and instructors are just part of it.