Hammerdins

just curious as to if im doing something wrong...my hammerdin, lvl 63 goes through potions like nothing...im always out of mana and health(health likely due to how poor i am-lack of items)...i have 8 mana per kill thing from items...anything i should change so im not so potion dependant?
ladder is irksome...im so poor and everyone still has so much stuff...