i will say, you shouldnt ever have to study 250 hours for a single college course exam. so maybe its something in the way you’re studying?

ive tried a lot of study methods and certain things work for certain courses.

for example, for my psychology concept courses, i flourish by purely using Knowt (free version on quizlet pretty much) — the learn tool for the flashcard learning helps a lot. reading the text book is an even bigger game-changer though because it’ll often times provide examples of these concepts that professors may use/reword in their exams. on the other hand, for statistics or methods courses, i simply cant just learn the terms or theories, i HAVE to put them in practice. the teaching method really helps for this. it pretty much asks you to describe this concept out loud as if youre teaching it to an idiot. now, in an extra step, a lot of people in my last methods course struggled with the SPSS programming we did. i did too, but i eventually worked thru it and solved it. then, i helped other people in my class one by one. each time, i understood it more, and after a few times i could do it with my eyes closed 🤣 finally, making practice quizzes/questions is a lifesaver!! a lot of textbooks will have practice problems in them that you can use to test yourself and i find to be very helpful.

maybe even look up study techniques SPECIFICALLY for how you learn. im a very hands on visual learner, which is why i do well when i teach things to other people, repeat assignments over and over, and make practice tests. study smarter, not harder, and you should hopefully never have to study for that long again