It helps to get experience, which is why you should take advantage as early as possible any opportunities to get your feet wet (hopefully not while handling anything electrical). Get practice working with lights in a community theater production, or for evening services at your local church. Then, when college time rolls around, you'll want to get your bachelor's in the broadcast arts, fine arts, theatrical design, or something along those lines. And for you real go-getters out there, having a master’s in fine arts can only help you. Then, if you want, you can also get a PhD in fine arts, which will allow you to treat any theatrical equipment that suddenly falls ill.