What class would you take if you were back in college?

A class would not be enough. I would take full animation programme at film school. The one where you can learn the actual craft. Where you can work in a fully equipped studio under the supervision of real professionals who actually work in the industry. Unfortunately, something like this is waaaay too expensive.

Or...
Nah, I'm fooling myself. I'd took botany and gardening course so I could work with living things that actually matter, often outdoors and possibly by myself. xD I can't imagine how hard would that be but I already know that working with computers is slowly killing me. I need a reset and digital detox.