Sometimes we try so hard to be perfect that we put others before ourselves. Maybe we'll skip a meal or avoid using the restroom to calm a whiny toddler. Often these decisions wind up making us very irritable and we lash out in anger making the situation worse, not better.
It reminds me of the warnings on airplanes. Put your oxygen mask on first, else you'll run out of air trying to put it on a wriggling child and neither of you will get one.
