Have you considered doing any in depth research on the subject?
I found NCA really useful when I spoke to an advisor who advised me really well six or so years ago (at that point, I had a National Diploma in Media Production and a HND in Broadcast Journalism) and I went on to get a BSc in Applied Computing - I was working for a major retailer before seeing them.
It wasn't easy, it involved learning lots of new skills, but I knew that beforehand, as I did the research.
As you don't seem to be in a position to go back to university, there are plenty of online courses from numerous universities both home and abroad.
If I were you though, I would do some (basic) research, look up the myriad languages that exist and work from there.