This is a great question. In addition to looking for grants, I would suggest looking for scholarships as well. There scholarships based on: intended major, age, race/ethnicity/nationality, interests, and much more! There has even been a growing number of scholarships for women and/or mothers returning to college to continue their education.
I would do a google search for scholarships and grants for women returning to college. I found one article that look promising: https://www.nerdwallet.com/blog/loans/student-loans/10-fantastic-scholarships-women-returning-education/
Start there, and continue to search online to find more opportunities.
Best of luck, its awesome that you're continuing to pursue higher education!
Julia recommends the following next steps:
In addition to that, also check with a local librarian as they know how to find all sorts of resources that could be of assistance. Another option that might be helpful is to check with a HS guidance counselor. Again these are folks that are really tapped into different ways to find funding for education.