is it me or is lost odyssey hard?

[ROBOTECHHEAVEN]

my strategy for the game, was at the secret cave under gongora mansion. i leveled up their i was at lev52, then i went to the extra boss fights,collect all the chests and spells, then i went and did the temple of enlightment and stayed their till i was lev80 and i also fought at the backyard arena and got alot of extra seeds for winning the battles. then i beat the final boss with ease, i was at lev99 when i beat the game. total hrs in the game was at 96hrs.