I don't remember how this stuff went as a freshman... seems like I had to take out extra loans that I sought out. But now I just accept the ones offered Federally... the difference might be that I'm not living on campus now.
Try to stay in state, and in a public U. Apply for work-study. Oh, here's a really good saver - get your gen eds at a community college! Yeah, it's not as appealing to you now, but it's SO worth it. Commute from home if possible. And my Uni's paper had an article last week - apparently a lot of college students qualify for food stamps, look into it. Though you may be required to purchase a meal plan if living on campus your freshman year. If getting a meal plan, get the minimum. Otherwise you probably won't use it all. Look into cheaper, off-campus housing options - again, it may not be allowed your freshman year; many colleges require you to live on campus or at home your 1st year.

Stay up to date on campus events, many offer free stuff like food, or other things. Shop used and discount. Use public transportation instead of your own car if available.