Should I?

I am a worker at a Bakery and I’m also a mom of two little boys. My spouse works as well, HOWEVER I am also a student. I just enrolled in my classes for the spring term, and I was told if I want to drop one of my classes before it starts that’s fine because I can take it months later In the fall. I work from 9am-4pm 5 days/wk but classes start at 4:30. I felt like I rushed myself into saying yes to agree to come to class at 4:30. I’m thinking about dropping one class and taking it in the fall, am I wrong for doing this???? I just have so much to do in my day and I will Never get a day off work to spend decent time with my children. I need to work as well because my husband and I pay bills and take care of our family. The class is two days out of the week that will be 4:30-6:15