Rotate player when aim

Hello, I I used this piece code from the tutorial:

 private void UpdatePlayerRotationWhenAim()
     {
         mouseWorldPosition = Vector3.zero;
         Vector2 screenCenterPoint = new Vector2(Screen.width / 2f, Screen.height / 2f);
         Ray ray = Camera.main.ScreenPointToRay(screenCenterPoint);
 
         if (Physics.Raycast(ray, out RaycastHit raycastHit, 999f, aimColliderLayerMask))
         {
             mouseWorldPosition = raycastHit.point;
         }
 
         if (starterAssetsInputs.aim)
         {
             Vector3 worldAimTarget = mouseWorldPosition;
             worldAimTarget.y = transform.position.y;
 
             Vector3 aimDirection = (worldAimTarget - transform.position).normalized;
             transform.forward = Vector3.Lerp(transform.forward, aimDirection, Time.deltaTime * 20f);
         }
     }

Problem is, that u must create invisible objects around the map, or it doesnt work properly (When I not aim on object, rotation is set wrongly)...

Is there another way, how can I rotate player with the camera when player is aiming?