I suggest resting in settling places like Inns and house would refill it, maybe like, pay for 3 stygian coins or 10 sgs credits for inns but the only disadvantage to this kind of system is that you have to be in settlements
Help me! my character's already too good to lose, please help me guys, every time I enter this certain area, it always says "zone transition error" and it would direct me to the main menu after I press ok, oh dudes, please help me