I'm so confused! I don't understand what I just did?

I have been a certified school nurse for 11 years working at both the primary and secondary levels. I have a MAEd through Gratz but presently feel I should still be in Elementary School!!!!
Before getting into the education field I was an acute coronary nurse at Lehigh Valley Hospital. I was fortunate to have two son's Jon and Eric and became a stay at home mom for 5 years before getting into school nursing. This enable me to get back in nursing with a schedule that worked with my children. Now they are in college and I am becoming disturbed by taking this course!