I'm trying to go back to school but I might be having some issues because I'm under 24 (turning 23 on the 19th) and I don't want to have to wait

But I want to go in to human services with the goal of one day becoming a substance abuse counselor. I went through a traumatic childhood and a lot of it had to do with people I was living with having substance abuse problems and that's something I want to prevent in others and help those in need