

As the other person said, something is wrong if your machine is shutting down instead of just giving choppy playback.
Do you do much heavy CPU with with that machine at all? It’s possible that AV1 decoding is the only thing you’re trying to do that pushes the CPU to that degree. 7th Gen Intel CPUs have hardware decoders for h.265, so the CPU is barely used to play these back, but lacking a decoder for AV1 means it has to be decoded in software, which hits the CPU hard.
I’m in my 40s and made a number of new friends this year by getting involved with my local fighting game scene. If you’re into videogames at all I’d suggest trying it, and if you’re not into fighting games specifically there are absolutely people at your locals who will be happy, if not excited, to teach you.
Fighting games are unique among competitive games in that while there is no cooperative aspect in the game itself they have developed one of the most collaborative and friendliest gaming communities I have ever had the pleasure of interacting with.