Tell that to them, not me. I never had problems with my studies even when I didn't give my all.

[She's not that mean, she's just very serious and mature.]

But what else do you expect? There are many people like that, who live their lives basically just wasting them because they don't have enough brains to think of anything else. Wasting their time during university is only a continuation and a prelude of how they spend their limited time.