Do bear in mind that like any other language, if you don't use it you'll lose it.
Back in 2001 I learned Morse well enough to pass the old CPL exam. But these days I've forgotten most of it - I can barely ident VORs, and often have to check my map or kneeboard. I'd really be inclined to say don't bother with the whole thing. Just make sure you know TST, in case the VOR is being tested, and if it's not that, write down what it's transmitting and look it up.