Again, I haven't been stucked before that point in the game. How would I know I was playing wrong?
The fact that things keep kicking your butt and you seem to think grinding is the answer to everything? You also probably avoided the much stronger optional enemies rather than actually facing them and learning what's required to beat them.
The first time I played Xenoblade I did just grind my way and hit a wall late game, but if you learn from the start it's really no grind required.