I have yet to study that far in advance for an exam (2-3 weeks). I tried that approach with organic chemistry but I felt overwhelmed with the sheer amount of information. I tried doing all the practice problems but couldn't finish them in time and ended up having a whole chapter left to go through the day before the exam (this is first semester ochem).
Try it more often but pace yourself. You've got it down but you're not hitting your quota and getting overwhelmed instead of working slowly and steadily. The more you freak out, the more you forget.
1. Schedule your studying
- Write down days you have up until the exam. Write down which chapters you need to cover. Rank chapters by difficulty/ most amount of time you'll need to cover them.
- Match up what chapters you'll get done in what day. Get through at least 80% of that chapter. Even if you fall behind, you'll at least have 50% of it down. Do practice problems on the day you're reviewing that chapter, but only problems you know you have trouble with.
2. Stick to your schedule. Doesn't matter if you sat there all day and didn't get **** done. Even 15-20 minutes will help. Push yourself to get out of your room and go study. 10 minutes is better than a whole day wasted. I promise you'll get fired up and end up studying for at least 30 minutes minimum.
3. When it comes to cram time, lightly review what chapters you've already covered. Go all out on getting the basics of the chapters you havn't.
When scheduling your days, don't count days where you'll have a soccer game or the day you're going to go shopping with your girlfriends or the day you're cramming for another exam. Pick days where you know you'll have at least 2 hours in the library by yourself studying.
I made Cs in both Ochem as well as some upper level biol. I didn't try hard enough when I really looked at myself. I didn't study
efficiently enough or started early enough.
Try the steps above and you'll see some results. Its frustrating but you have to want it bad enough. You have to get to the point where you know what kind of questions the prof is gonna ask and quiz yourself based on that.