Unfortunately
Moore's Law applies to the IT industry.
I hold a B Eng(Electron) from the late 1980's and the only things that are relevant today are the maths, physics, thermodynamics etc. The computational side of things is about as valid as a 1910 driver's licence. Having said that, if you can program, and understand the fundamentals of programming, learning a new language is not hard.
Since then I've done courses in Banyan, SCO, Novell, Microsoft, Cisco, Linux, Alvarion and MikroTik. For my troubles, I was certified as a MCT in 2001.
I start all my appies who make it past the first three months by sending them for the CompTia certifications (A+ and N+) and then follow that up with something from Microsoft and then round them off with something specialised like security, Linux or MikroTik.
If you can afford it, get a degree behind your name straight from school. It's very difficult to start studying once you haven't done it for a while. If you're on a limited budget get yourself a job as the shark poo (the guy who shuts up and passes the tools) and learn, learn, learn - either through vocational courses or through a UNISA degree.