rwlewis is on the right track. By all means learn to use the rudder, however use it only when rolling into and out of turns. Don't hold rudder during the turn. That will produce a skidding turn. Rudder is generally required to counteract adverse yaw (which is the tendency to yaw away from the turn caused by deflection of the ailerons) and is only needed when the ailirons are deflected. It is not needed during the turn.