Don't worry about rudder right now....just fly..I know you know the rudder is there..I also know you're going to use the rudder while in flight...thats ok....that's how you're going to learn rudder..don't worry about using rudder in every turn..after all alot of our full scale brothern don't use rudder in turns or have the authority greatly reduced depending on speed......
Have fun flying first..a good pratice is a flat turn..get high then gently put in some rudder..as the plane begins to roll counter with opposite ailerons and watch your aircraft skid around the turn..before you know it you'll be "kicking out" the crab on a crosswind landing....
A note of caution when I was newly solo'd rudder cost me a trip the repair table...I was "kicking out" the crab and went the wrong way with rudder....don't beat yourself up...have fun first