Unless I missed it, no-one seems to have suggested calling 121.5 for a practice Pan. Listen out for a while to make sure there's no-one in real trouble, then give them a call requesting a practice Pan. Do this in a nice quiet bit of airspace, when you're not working another frequency. Think through beforehand of a suitable scenario, eg getting stuck in IMC, an ill passenger and you need to divert to a suitable airfield, etc.
I always taught my students to do this. Firstly to appreciate just how helpful everyone is, and secondly to encourage the student to use 121.5 promptly if they ever need it.
Just keep your airmanship going and don't switch off the old brainbox, because when you've finished you'll need to continue aviating and navigating.