If you’re already attracted to nine year olds, you hardly need to do anything. Just keep looking at that kind of art, keep reading those kinds of stories. With respect to attraction, age generally truly is just a number; you are attracted to a particular look, and that’ll slide around on its own as you continue looking at art and reading stories that relate to these themes. One day you’ll look at what you just jizzed to and realize you need to update your AoA because they just drew it that horny. You may come to realize, eventually, that “AoA” is a fake idea forced on us by normies obsessed with Tanner stages.