NOT KNOWN DETAILS ABOUT TIEFLING PERSONALITY

You need the WIS not just for your survival, but for your core class abilities to get beneficial in any way. Center on STR or DEX (based on if you want to be melee or ranged focus, respectively), and then Enhance your WIS. Your +1 to AC is naturally going to make you a more robust in shape for melee conditions. Barbarians worth STR above all else,