...Keep fiddling and trying stuff out
Can't disagree with that. The point I had in mind was that fiddling often leads to a need to reinstall, so if you first and foremost want to find out what Mint can do for you, leave the fiddling until you are more familiar. Alternatively - yes, that's what VMs are good for. No use if it's the hardware that needs fiddling with, but pretty useful otherwise.