i had hopes that the story would pick up. dont get me wrong, i kind of like the characters. they are somehow adorable, though i really dislike the character (and general) artwork.
the cc combat system is weird. im playing on the difficulty above normal, only died once (to the last boss i mentioned above), though i dont reaaaallly know what exactly to do.
at the beginning of a battle i look if the enemy is weak to a or b/e artes and then i attack them with the respectively attacks. after a more or less fluid combo i block to restore some cc and to get that defense-break status. rinse and repeat.... ok sometimes i even dash. thats it.
There is your problem .
You are restricting yourself too much.
forget about exploiting enemy's weaknesses for a while and just cut loose with combos and arte's . (Damage will pile up fast regardless of weakness )
See what flows best from one attack to another .
Challenge yourself to get the biggest combo going you can get .
Switch characters around to prevent getting bored . etc.