Your best bet is to fill out a FAFSA and then visit the college you want to take classes at. I am a 30 something mom and went back to nursing school 3 years ago (just graduated a few months ago). Anyway, I became great at digging out all of the grant and scholarship money I could. It was a bit easier for me to qualify since my DH was laid off at the time and we had very little income.
Anyway, I was told that I should take out the loans I qualify for since many hospitals will pay back student loans when you sign on with them. Between the loans, scholarships and grants, I received $12,000 a year. School only cost me $5,500 and I received the remainder back in cash to pay for living and additional school expenses. I did not apply for things online, or "advertised" money. I did get a job right out of school that has paid off my student loans since I was willing to sign a contract to work for them for a few years.
I spent lots of time, applied for lots of private scholarships, and had to write essays, etc in order to be considered for most of them. After accepting, many times I had to attend banquets and luncheons in order to be recognized as their recipient. I met many wonderful people along the way. It was work, but work every second.