School is just a big time suck...that's why it's hard. All the classes are same difficulty as college, maybe more straightforward and condensed for nondental basic science if youve already taken upper level classes in college. Dental school makes college seem like vacation...you wanna laugh when people in college complain...you could expect me to say that i would want to repeat college again but you won't hear me say "wow dental school is fun, let's do it all over again." Residency will make dental school look like a breeze.
In this context im assuming youre trying to get 4.0 in college and dental school...if youre trying to do GP and get by with B's its a lot easier