Krissy,
I understand what you are saying re private religious schools. I, too, was taught to turn the other cheek, always volunteer first, give until it hurts etc and I grew up with those beliefs which I carried into adulthood believing that if I did not put everyone else first I was not a good person. Through therapy I have learned that it is OK to love myself and be good to myself first if I expect to be able to help others.
So put your health first and keep on moving forward one step at a time.
Happy Friday to you.
Kitt