I just play a variety of genres and swap between long games and short games. For example after a 90hr game like XCX I'd do a few shorter games that aren't RPGs like relaxing sword of the sea or a simple platformer etc.
Also instead of say doing GoW and Ragnarok in one year I do one then wait like a yearish to do the sequel. I did the same with the reboot Tomb Raider trilogy - makes each game feel more fresh







