I'd check first with your school's financial aid office. You are much more likely to be able to get a loan than a scholarship. However, schools do have some amount of moneys that they give away. UMKC, for example, has a Women's Center that gives away small grants to women in need.
There is a lot of government assistance - I don't believe much of it "give away" though. More loans. You can usually get the government form at your school's financial aid office, but it may also be available on line at http://www.fafsa.ed.gov/.
Also, if you haven't already discovered it, I would also register with www.fastweb.com. You fill out a profile and they send you new grant and scholarship opportunities that match your profile as they become available. However, know that you will be competing with hundreds of thousands of students for these grants.
Also take a look at Scholarship America, a foundation that tries to help the families of employees of certain companies to be able to get a post-high school education. Even if nobody in your family works for one of the supporting corporations, they also do have some help for the general public. http://scholarshipamerica.org/students/open_scholarships....
There are so many other web sites, that instead of sending you a bunch of sites, I'll just send you the URL of the google search I did. Then you can look at each site one at a time and see whether you think it's valuable for you or not: http://www.google.com/search?q=grants+and+scholarships+co...
If nothing else, try a work-study program - a job on campus that pays you enough so you can get by, and often is a pretty lax job with time to do homework. Good luck and don't give up on your dream!