i'm like that in anything vaguely RPGish, videogame/board-top/cards/whatever.
if there is a such thing as a potion or anything like it i'll horde it and never use for fear of needing it in the future, well past the last boss or the credits..
I've noticed this a few times where I've hoarded items to use later only to find I've finished the game before that challenging "later" arrives.
For some odd reason, the specific game that comes to mind for this was Horizon:Zero Dawn PS4/5.
Conversely, I'm playing Half-Life:Blueshift right now, and I didn't try to save anything, now I've hit a couple of points where I'm out of ammo or health and can't progress without loading an older save.
I had one fun experience in Black Mesa (HL fan-remake) where I was knocked off of the edge of a "cliff" by a large enemy (no spoilers) and it auto-saved mid-air, so it reloaded me falling forever >_<.
I'm kinda opposite on reason, I feel like using one means I failed to do the battle the normal way and picked the easy mode.
I've mostly healed from that affliction, at least for buyable consumables, now it is just math, if I buy X potions I won't have to go back to rest and heal, so it's more efficient to grind while spending a bit of gold earned on regen