Haha sometimes I forgot to take anything in my item pouch or even any armour - brings my 1'35" average run on an Arch Teo down to about 2'01" lol.
That's a joke btw. One you probably won't get but it's usually said by MH douches.
The MH community on this forum seems pretty helpful. I'll echo what the other members here have already said especially when it comes to crafting to get your craft list up. Doing so and hunting more will help you bring what's needed.
During early Low Rank, I'm pretty sure for most hunts I'd just bring Potions, Mega potions, rations & might seeds as the main items, with nulberries, antidotes, flash bombs, dung bombs, as needed.