Dotsie
I recall my daughter then son doing the leaving for further education thing.My heart had a hole in it.it get filled with love I can assure you.
My son also did a post grad year.so there we were his sister and I dropping him off....he showed such kindness and love and looked so ready for this new experience that I kept calm and was brave.....UNTIL on a rural road a little kitten had been run over and was lying dead on the verge.I opened up....my daughter who was driving saw and joined the grown ups club by saying "You have been through this Mother with both of our academic chioces...but you did tell us to work hard at school" whilst she was crying for the kitten AND her brother.
Good luck and love to your daughter..
Mountain Ash