Back in the late 90s/Early 00s when I first played the psx Final Fantasy's and X I just wanted to advance to the next part of the game as soon as I could so I always tried to avoid battles and therefore never grinded. If anything I was always underleveled and really struggled through boss battles, often beating them through the skin of my teeth.

Nowadays I hang back and grind a little more which means I tend to have an easier time with bosses. Maybe it's just games becoming easier but I kinda miss struggling a little more, I should probably go back to my old ways.