Oh, well, then I wouldn't recomend spending the time to learn a language under those circumstances.
Tech work is just like any other kind of work. If you want to draw an alegory to carpentry I think this stands up. To become a master carpenter, you don't start out by practicing using a saw and hammer in solitude then go looking for something build. You start out by trying your hand at making a table out of scrap, then a better one, then maybe one worth buying good new material.
Same thing here. Just keep kicking ass on the work that you can find, solve problems, be a hero and thereby establish your reputation while picking up complimentary skills along the way. If you're working the medical field, sooner or later, you'll probably be asked to try your hand at beating a Merlin PBX into submission. If you can do that, you'll never run out of work.
Also, there's probably nothing in your contract preventing you from doing just what you're doing now for your own private customers. So print up some cards, cary a few with you and hand them out to whoever you run into who might some day need your help.
for it is a truth, which the experience of all ages has attested, that the people are commonly most in danger when the means of insuring their rights are in the possession of those of whom they entertain the least suspicion.
--Alexander Hamilton
