Re: "Learn whichever ones take your fancy though."
Although probably a good idea to avoid "M," the language formerly known as mumps.
A friend of mine made a very good living doing M just after leaving University.
We'd taken the piss all the way through Uni because she was reading Philosophy. Then she got a job in my field on more cash than I was getting...
She's an undertaker now...
 Yes, it was still Mumps at the time.