I was a full time college student the first few years of my daughters life and I thoroughly enjoyed it. You should be taking the classes you want and enjoying it too. I know there are many general ed required classes that we all despise but they go quickly.
The one thing that made my college experience enjoyable is that "I" picked my class schedule. I never had an advisor tell me I had to take this class or that class. If I wanted to take adult piano and aerobics along with American History and Political science I did, I took a couple of no brainer classes with my regular classes and I made almost straight A's.
I basically took 6-9 hours of core classes and 1-3 classes that anyone can pass if they just show up, like choir, music appreciation (Humanities credit), Good Life Cooking, Weight Training (P.E. substitute), Adult Piano, Tennis, Country and Western Dance, etc...most of those are 1 hour classes and they can be totally fun. They not only reduce stress but fill in the remaining hours of a schedule to be full time without it really being 4-5 core classes that would just be too much for a full time mom.
Take a moment and think about your schedule and decide to let it be more fun and enjoyable. Don't quit unless you can work and support yourself without a college degree, right now. If you can make enough money to live well without it then maybe it isn't worth the time and effort but I believe that education can never be too much work and effort.
Good luck in school and hoping your grades are all A's.