You don't look old enough to have a daughter graduating!
Good for you, making a satin dress. Back in 1950, I made mine from lavender eyelet embroidered fabric that cost less than a dollar a yard. Next year (my senior year 1951) I made my dress from a beautiful fuchsia water marked taffeta... Thought I was queen of the ball. Wonder what happened to it. I didn't have girls!!! :(