Overwhelmed

Sometimes I feel as though my life is full of tasks. Of course they are apart of my life, but i can feel overwhelmed. I have three kids at home (ages: 12, 11 and 8) and they are self proficient but every now and then I have to remind them of what I said needs to be done rather than what they want to be doing. I feel like a single parent although I am married, my husband is deployed and I have been out of the military over a year now and I chose to go to school because I didnt want to be sitting around the house being bored, but now I dont think that would have been a bad idea. I feel overwhelm at times because my day starts at 5:30am and doesn't end until 11:00pm or 12:00am, once I get everyone off to school my day starts and sometimes I don't really feel like going but I go cause its only three days a week and plus I have already spent money on tuition and books. Some days its just to easy to say I dont have to do this but then I have to realize why I took the time out to initiate taking college classes in the first place. I dont have a problem with school except for the classes that I need, there is alot of reading and studying but when I get home about 3:00pm I have to get dinner started, pick up my kids from after school activities, help with homework, supervise chores, get prepared for the next day, serve dinner, bath time, and before you know its time for bed; at least for the kids. In between all those tasks I have to try to swing in a little time for myself to read, but I cannot get all that done cause I am so tired and sleepy. The next day may be the same except for a little exception of lawn care once a week. That's why some days if you see me and I seem quiet its because I am always thinking of what my life is like, its going to take time and I am being patient, overwhelmed but patient.