If you have decent writing skills, then this is definitely something you should try. Article writing is a form of freelancing. But it is much easier, especially for students. You can write articles for money in various places. First of all, you could write for articles the top article directories, such as EzineArticles. You can also join other content websites and write articles there by creating HubPages or writing Squidoo lenses. You can also write for reputable blogs. Write a few guest posts on various blogs for free, and who knows? You might get picked up by another blog owner looking for writers?
Apply for new scholarships and grants. A lot of students think that they are only eligible for funding when they initially apply for admission. This is a mistake! There are often new scholarship opportunities for upperclassmen, though they aren't always widely advertised. You may also be able to apply for external scholarships or grants, which are offered from groups outside of your school.