Not manga related, I'm just being dramatic

Sorry I just wanna get this off my chest, so I was reading the manhwa: The Abandoned Empress; and I came to the part where the red hair boy was introduced, at first I was like: he's so overdramatic, he can't just judge people for not having the same level of dedication that he has, which in this case is being a knight. And what do you know, few days later I have to swallow my own words. I'm currently in college and taking the Nursing course and lately my classmates frustrates me because I think they're not taking it seriously and as someone who invested her all in it felt insulted. They make mistakes during duty and they don't even reflect on it, I'm also losing respect to the teachers who let them get away without any disciplinary action. (╯°Д °)╯╧╧ I'm so stressed, I regret choosing this university.