I'm going to put it bluntly and say that you can't afford to waste your time
(and government funding ) on things like this.
Thing is, there are a million trillion things I would love to learn and do courses on. Heck, if I had a choice, I'd do another VCE year with like 10 subjects because I feel so ignorant about physics and chem and accounting and history and politics and economics and spesh and busman and IT and on and on and on. But I just have to accept that there's no point going a millimetre in a hundred directions, when you could be going a metre in 1-2 directions.
And if you want to do other courses, be aware that you can only get govt funding for 1-2 per year and $100-200 fees will suddenly become a few grand.
So pick what's most important to you (what are your goals/purposes in life?), invest the bulk of your time in that, and then accept that you can't do the rest and be content with spending a little casual time (e.g. time spent practising cooking basic recipes at home) on learning the amateur basics of other skills.