I have a freshman?

How did this happen that my son is a freshman in high school? Wow, what a constant fight! I'm just now realizing that I'm not going to win every battle and he might even win the war. "Parents are so stupid." I remember saying it and now I feel it! I remember the total fear and dread that came over me when I left the hospital with him. How totally unprepared I felt I was to be mothering a newborn. Boy, I was way more prepared for the newborn than I am for this. Every time he steps out the door I can't protect him; from the world or himself!