It's hard because past a very very vague similar system in valkyria chronicles, around a kind of turn based system with real movement but very much jrpg style attack turns, it's not like any other game.
You can go into 95% of any jrpg and feel familiar. "Ok attack, attack spells, buff spells, debuff spells I won't touch you unless playing megaten, potion, mana recovery items, got it, lets go." It's hard to learn here because you're actually learning, not just tweaking what you remember of that jrpg system 20 years ago you first played.
The arena, where the tutorials are at, is like a .5 second travel time from town. Since the world map is so weird looking and I didn't know I was actually traveling on it, I moved around for a second before going to the arena and got into a fight. That fight REALLY pissed me off because nothing I tried worked and I almost died without any knowledge of how to play against these like level 1 piss ant enemies in the beginning of the game. Was seriously "f this, what the hell man" because it was just not fun being completely ignorant.
I felt comfortable about an hour in, game got really tough like 2 other times and after about 10 hours I felt truly "in the zone". I might not be able to play on the toughest difficulty in game(aren't there like double digits? or close to), but at that point I had it down.