Yeah, "biting the bullet" is probably a good idea. As someone with a graphic arts degree who's been a "web designer" for years, I can tell you the potential for making money at anything entirely with front-end and design skills seems vanishingly small. The days when having an ftp account and Notepad were all you needed are long, long gone.

I know enough git to be able to manage the basics (pulling and pushing) and a bit of command line stuff. If you ever get into working with web frameworks in just about any language, I think those are going to be kind of essential. It's probably not going to be as scary as you think though.