What is a good career for a 24-year old guy with a family, a GED, and a pion for music and technology?

I would like to go back to school, but I have a daughter and a wife-soon-to-be and must hold a decent job to keep us fed. However, I am too smart for my job... I drive a forklift. Even though I got my GED, I always got high scores on my aptitude tests in school... I just didn't apply myself enough in cl to graduate. Now that I'm put in the situation of having to take care of my family, I also want to become successful. As of now, I make decent money ($25k a year), but I could be laid off at any time. Not to mention a dread my job. I would like to do something that I have a pion for, but I don't have the time to sit in a clroom, let alone take double the course load studying something like music education. What are my options as far as going back to school? Any ideas?