Hi there! Boy, it sure does sound like you have a full life! Yes, stressful, but I'm hearing quite a bit of really great things mixed in there- you've lost weight, you've almost completed your degree, and you've got 2 kids you care a lot about. Congratulations on all of those wonderful things in your life!
I think we all from time to time get bogged down in the 'trying to do everything for everyone' syndrome and it is tough. I have found that when I do make some time for myself, I can approach the other aspects of my life in a much calmer manner. There is usually some degree of guilt involved at the time, but it is better in the long run. (Plus, sometimes the things I think 'NEED' to be done aren't really needs but 'WANTS'--psst..don't tell my husband that he might be right about that!) We're all here to do the best we can each day.
Maybe once you are done with your degree and that is off your plate, you can take a closer look at your routine and see where things can be changed- maybe you can use an online calendar to put everyone's appointments into or you can spend some time on a Sunday to plan out your week ahead and who will do what (i.e. meals, dr. appts, etc.)? Also, did you know that SP has a mobile app so you can enter your info. from your phone if you have that capability?
Hang in there and good luck!