I made it through my baby saying "I want to join the Navy" even though the vietnam war was the big thing as I was growing up. Through his experience I learned how very different things are now.
You'll be fine. You'll be Mom forever and can always have pride looking back and seeing what you've accomplished, a son to be proud of! I was kind of sad but then realized, this will always be a 'soft place to fall,' so many kids don't even have that