My girl(only child too) moved out 12 years ago I have 2 granduaghters. Next best thing in the world. I am lucky she lives just 20 miles from us. I won't tell you that the part of you missing her will go away, it won't. A phone call a day and a trip to fishing one place or the other will bring her running. she is hooked as bad as I ever was sometimes she even out fishes me. so do not be sad she will always be your baby girl and when she is broke it will be just like high school, hey pop you got an extra 20 or so.