I find it so strange.

I'm a casual player. I don't grind. I don't have most of the achievements or trophies, I don't even have half of my jobs maximized. My WHM level is 15 for Twelve's sake!

I mostly go solo in OC and don't even take part of FATE trains, like ever.

Usually I participate of 3 CEs and leave to do something else, like trial or normal raid roulette, two or so society quests.

I'm saying this so you have a notion of how casually I play this game.

And yet, I got all demiatmas just doing some CEs, a few FATEs. Even before OC level 15 I already had all demiatmas.
Took maybe a week, maybe a little more.

I inclined to believe you guys saying you are having a hard time aren't really trying.

Well, I certainly wasn't and did it anyway...