Lost on what to do

I figured this would be a good place to ask this question (I was directed her from another forum section) as I have no idea how to approach this dilemma. After graduating from a college prep with a solid gpa I decided to skip college and pursue a career in film production. While this has been going extremely well, I have a yearning to go back and learn however I feel my absence from schooling/average SAT scores will extremely limit my choices on where I could attend. I’m wondering if my perceptions are correct, or if not how would I go about applying for schools not coming from a high school and if applicable is it possible to include professional experience in applications.