for college years:
1)study hard and smart - study good topics that have lots of earnings potential (AND THAT YOU CAN SUCCEED IN - there is no point wasting time on something you won't enjoy and won't be good at)
2) get into the habit of living cheaply.
3) one thing people eager for money in college do that is a mistake, is they focus on money above all else. Working during school is great. But make sure to prepare for internships (possibly after sophomore year and DEFINITELY after junior year). Some of this means looking around and planning and applying early and setting plans on how to get a great internship. But it also means being financially able to foot the bill of one. If you got offered an internship at the best firm in the world and it was unpaid, and this firm hires 95% of its interns, you need to always be in the financial position to accept this. If the point of going to school was just to boost earnings, you can become a hair stylist in ~6 weeks and (depending on area) see a moderate boost to income. My point is be willing to invest in yourself.
4) don't do drugs, or anything that might get you a criminal record - its expensive and limits job prospects
5) avoid booze,
6)If you are struggling in any of your classes - go to office hours of the faculty. If you are not struggling in any of your classes, take harder classes (and go pester for permission to get into harder classes if necessary (this is less true at community college than at flagship universities)). Struggle creates success, especially in the long run.
7) set a budget, and learn to stay on it. Even if your finances are good, be deliberate with them.
8) talk with your parents about money, your goals for life, and happiness in general. Talk with your roommates about things that are bothering you, and about things that matter. Get good at handling conflict (the easiest way to lose lots of money is a medical emergency, but the second easiest way is a divorce or other bad relationship - so start working now on trying to be good at relationships, it will make you happier now, and a LOT happier later).