Take your time and
observes the monsters» behavior patterns, learn the combos for the weapon you chose, do not button mash, upgrade your gear if you can't kill it before it leaves the area, learn elemental weaknesses, do not be ashamed of
running away, pick up everything (even dung is useful) but do not forget to put it in your item box, never sell anything early game and never expect to be godly strong
EVER.