I have five children and my four boys all did as you. They tested out of HS early by taking the GED and have moved on with careers or attending the university. There are many young adults your age doing the same thing, but you will most likely meet them at school. Although the website is for homeschoolers, much of the activity is directly related to parents who are still educating their children. Maybe you should join the coop and start a group for your age and ambition so that you can network and help each other along.