Finally, the moment has come when years of science fairs and spelling bees, stinking gym bags and forgotten permission slips will be left behind.The mountain of laundry will become just be a pile, the grocery bill will shrink and the house won’t get cluttered quite as quickly.As their babies throw graduation caps into the air, many local moms this Mother’s Day find themselves wondering about their own future — a future without children sleeping under their roof.In the days leading up to her youngest daughter’s graduation from Gainesville High School, Lora Cooley said she’s experienced a range of emotions.“Some days, some hours I’m really, really happy. But some days, some hours, I’m so sad because things are changing,” Cooley said.Ann Nixon said she too is feeling the sting of a final graduation.“Right now, I see it as the end for a lot of things,” she said. “I’m trying to seek the new beginnings.