BLACK DRAGONBORN DND NO FURTHER A MYSTERY

You need the WIS not only for your survival, but for your core class abilities to be useful whatsoever. Center on STR or DEX (based upon if you want to be melee or ranged focus, respectively), then Improve your WIS. Your +one to AC is naturally gonna make you a more powerful in shape for melee conditions. You'll have to pump either CHA, INT, or WI