being smart is only good in highschool, outside of highschool, it doesn't mean jack, its all about hard work, hard work, HARD WORK. there's no hand holding in college either, your teacher won't tell you to write this down, or to remember that, or this and that will be on the exam.. you gotta remember EVERYTHING they say, and only way to do that is by taking notes... they don't always go by the textbooks... they might say stuff from their own knowledge/experience... perhaps you can record the lectures? i always see people putting tape recorders and stuff at the front of the room so they can record the lectures... or if your prof is nice you can give him like a tiny digital recorder he can put in his pocket (doesn't work if 10 people want to do this) or if you're lucky your prof will post the notes on the net (if he prepares his notes on computer..)
anyways.. good luck.. if you feel like you're capable of working HARD and STUDYING!!! and putting at least 3 - 4 hours daily outside of school studying, then you'll have no problems. if you think because you're smart you can take it easy on the studying, well don't waste your time/money..