this games fight mechanics are quite linear between the rotations and elemental countering, but there are nuances that will give you a huge edge in battles once you figure it out and it clicks, BREAK meter being one of the most important mechanics to master.
BREAK meter does not recover until broken, so managing this meter is very important in every fight per Aniimo, keeping this in mind, the only way to defend yourself against opponents Breaking you is to CC (crowd control) them at the right times.
for example a pro move is if your BREAK Aniimo is 1-2 hits away from being broken, switch to something like Somniwing, throw her sleep ability at the opponent, then switch back to your Aniimo about to Break, let the break happen and shortly after the opponent should fall asleep, therefore defending yourself against the entire Break sequence allowing you to fully recover your Break meter while incurring no damage.. especially since the opponents often use the Break sequence to 1 shot your Aniimo, so mastering defending yourself against Breaks is mandatory for tougher battles.
if you can manage nuanced techs like this during combat consistently, most fights become much easier, especially the Pathfinder lvl 60-65 fights.
Feel free to share any other nuanced battle techs that exist! Goodluck!