how can I Make my player model invisible to my camera

Your camera has a culling mask with all your layers, you can try and set the layer that has your player in it to not be rendered by the camera.

You could even do this at runtime if you only want it for certain situations.

 using UnityEngine;
 
 public class ExampleClass : MonoBehaviour
 {
     Camera cam;
     int _mymask;
 
     void MyFunction()
     {
         // Store a copy of your cullingmask
         _myMask = cam.cullingMask;
 
         // Only render objects in the first layer (Default layer)
         cam.cullingMask = 1 << 0;
 
        // do something
     }
 }

then you can alwayss et it back to whatever it was by calling:

 cam.cullingmask = _myMask;