Most people I know and myself seem to be in a similar boat. Not necessarily out of lack of things to do (oh I have plenty of things to do... but its mostly busywork) but playing makes us sad so people have vastly cut down on how often they play.
[PC/NA] Dungeoneer (Tank/DPS), Retired Trialist, and amateur Battlegrounder (DPS) with a passion for The Elder Scrolls lore.
I've been a player for 7 years, and even though I've done all questing, a sizable chunk of group content, and many many hours in PvP, I know there's still a lot I can do, many achievements left to unlock.
But boiling it down, the reason to keep playing is to just enjoy your character in the game world. If you need breaks to recharge, so be it.
Even just limiting the amount you play to once or twice a week might help. I got burnt out hard back in 2020 and only really got back into the game significantly last year. Until then whenever I did play it was only a couple times a week and otherwise just played single player stuff. It's perfectly normal to take a break when you feel like there's nothing you want to do.
I have to do some crafting this month. I only need to learn Nirnhoned traits on all the different types of gear, then I have a collection of surveys and a load of master writs to try.
You could always, you know, get into role-playing. Then all the content in the game becomes added fluff to the amazing stories and character interactions that happen playing with others. i spent 17 glorious years in WoW as a heavy RPer. i was there for the role-play with others. Only left because the game was getting so clanked down, you couldn't fart without someone reporting you and getting a ban or a mute slapped on you.
When the game first released I got it entirely based on the elder scrolls theme, I’ve been a fan since morrowind. That excitement quickly fizzled as I realized that I hate grinding things like mount speed and crafting and I would have been finished by my 3rd month had it not been for my discovery of role playing people and guilds. Suddenly I was absorbing lore, working through player-made missions and storylines, and went through dozens of D&D style campaigns. It’s using a completely different part of the brain to have fun, and it’s been a blast. During that time I’ve been keeping up with most types of gameplay on the side, slowly finishing up vet DLC hard modes, collecting furniture, finishing gear sets, and putting together different builds