You know, if you have a dream to do work in Photoshop, you should keep at it. I've been doing aviation photography (shooting airplanes air to air) for magazines for years. That started by just going to hang gliding and ultralight aircraft meets in the early 80s, that I was competing in, and taking pictures and writing stories, because I loved it. Eventually, I was writing and shooting, then a full time editor, for magazines.
Then I burned out on that and started freelance aviation photography for the company I'd worked my noodle off for initially, and along the way I started playing with Photoshop, though then everything was still shot on slide film (mid 80s). Today, I'm pretty good at Photoshop (I work in the latest version, CS). The mag occasionally pays me to do a digital illustration for the editor (not much, couple hundred bucks), but I do all my photography digitally now (Canon EOS 20D, 8 megapixel sensor) and I process all the images on my Asus P4PE w/ P4 3.0C and two gigs of memory, two 19" Samsung LCD monitors to save my eyeballs) and if I hadn't just played around doing something I loved anyway I wouldn't have made my living at what I do for the last 20 or so years, and I wouldn't be (excuse my immodesty) considered one of the tops in my field.
Not that I'm getting rich at it...but I'm not starving either.
Follow your bliss, dude. Don't let anyone tout you off what you have a sincere desire to do. The money will come, just follow your bliss.