Oh, most recently Bravely Default.
Part because it's almost certainly a great game, its so nicely made... but... I fell right for its bad pacing/structure issues and I feel sort of bad that I don't think I had as good an experience with it as I really should've.
First of all, cause it was a 3DS RPG I decided i'd play it before bed, so i'd usually pick it up at like 11pm and id get through about 2 random battles before I felt too sleepy to continue.
(Bravely) Secondly, I initially insisted on doing all the sidequests but I didn't know how long they're available for so i'd end up attempting to do all these late game ultra hard grindy sidequests that were actually repeats of boss battles (in between doing repeats of boss battles that you have to do anyway!) and I'd get like halfway through a set of them and because id got so far, sunk cost fallacy set in and I wanted to grind away to finish what i started before I finished the game cause i'd definitely put it down forever.
Thirdly, I foolishly think all RPGs are more fun and engaging when you constantly switch up classes/partymembers/whatever every single expedition. So I spent a lottt of time in the menus and generally didn't minmax the classes enough to have an easier time.
Fffforthly, yes I got the true good special secret ending which in retrospect is probably meant for second playthroughs and obsessive completionists. That boss sure does GO ON A BIT. And it took me so many tries. I wanna cry ;_;
So yeah it took me about 6 months to beat the damn thing and even though i really like the class system, the music, the art, the bold concept (in theory), the character development... I just really mostly wanted to see the back of it.