Time. It shows no favoritism, and yet it molds each of us.
As a young mother, I longed for breaks from my responsibilities, and time to just think about myself, as I did prior to motherhood. As an older mother now, I find I can barely stand to miss a second away from my children.
I have seen how fleeting the time is, how very quickly it passes, and I want to savor every moment with every single child, at every stage. I used to dream of a day off, and now, if I feel overwhelmed, I just need a tiny break, like a quick bath or a fast workout.
Remember that you are always evolving as a mother, so it is good to try to keep in mind that your feelings do change over time. You will look back at the business of young motherhood, and fondly recall that these truly are the best days of your life.