As an adult student, you most likely have many ties to your community. You have built relationships with your church, neighbors, the schools your kids attend, family and friends, social or professional organizations, and the many other relationships you have. By virtue of having established yourself in your community, you very well may have many more resources available to you that you have not thought of before. Take advantage of the time you have spent establishing yourself in your community.
Day care is a big issue for many non-traditional students.
Check with your school's administration office to find out. Community colleges in particular tend to have a lot of students who are in the same position as you and therefore also tend to have more resources available to single parents. Try to make friends with some of your classmates and see if you can trade baby-sitting with them. See if your church can help you. One student, a single parent, spoke with her pastor.