Definitely start with the FAFSA. If you have any local job markets, they may have some good information for you as well. Local hospitals may be offering scholarships, or even tuition assistance programs if you work as a CNA while you are in school. Your senator or congressional offices may have scholarships they offer (although if they are like my local politicians, they may just never respond when you contact them
). Always look at your school's financial aid website, and stop into their office, because they may have a whole list of organizations looking for scholarship recipients just like you. I should say that you are starting your search very late in the game. Most scholarships and grants are considered in the January to March range (some even earlier) for the following year, so if you don't get much for this coming year, you may have better luck the following year.
I agree those sites tend to look shady. I suggest starting locally and work your way from there. And don't get discouraged. I've had a 3.8+ GPA for two years and have yet to receive a scholarship (although I'm waiting for a call back on a huge one right now). There are so many people looking for money that there isn't much to go around.
Good luck to you!!!