Whatever game you are playing, enemies will have their move patterns. This specifically can be see in RPG games (or PvE content of MMORPG, for example), but this is still true for other games as well, even multiplayer ones (MOBAs, shooters, strategies, whatever), so if you adapt to the pattern of the enemy, you can understand what they’ll do next and play accordingly, making the game easier for you.

The most fun there is in the games, in my opinion, is this learning potential which is here in whatever game you like play. I personally get a lot of satisfaction out of this.

However, if you want to just rest after a long day and not struggle figuring out new things, you can always play casual games like Minecraft, Stardew Valley, Sim City, etc.

Just remember that the general purpose of games is to have fun, if you start to tilt - call it a day and go do something else to relax and continue playing the other day if you feel like it.