You are normal! My oldest son went to collage at a University 5 hours away and we dropped him off he was only 17! Every year I found it harder to let him go know it was getting closer to his not coming home in the summers, Now he is a succesful teacher, coach, drives a new Truck and owns a home 15 min from us. My second son chose to go to college out of state-got married and now has 4 children but they chose to live 6 hours away! Middle son is also attending college 6 hours away. second youngest son at 24 just purchased a home 1/2 hour from us, I was so sad but happy for him. I now just have the youngest home but can see it won't be long before he moves on too. Sometimes I feel useless because they no longer NEED me. But I am proud of them all.