Can you relate? Sometimes it can feel like you're sending your "babies" off to college. Try to trust in the fact they are becoming independent adults and remember that this transition is an important part of growing up.
I'm only responsible for what I say, not for what you understand. Although as an author I am responsible for making readers understand--a reader who doesn't understand is an unhappy reader. (And there is some value to leaving some questions unanswered...)