Vertical axis not working properly

I'm trying to get my FPS controller to work properly, but I'm having trouble with the vertical axis. Either it doesn't work, or it over rotates and I end up with an upside down camera view. I'm using simple move because my robot character does not need to jump.

using UnityEngine; using System.Collections;

     Public class PlayerController : monobehaviour {
     
       public float MoveSpeed = 10f;
       public float MouseSpeed = 5f;
       public float Range = 60f
               
       float pitch = 0f;
       
      Void Start(){
      Cursor.visible = false;
      
      
      }
      //as of right now vertical camera movement is not behaving correctly
      void Update(){
      //camera movement
      float yaw = Input.GetAxis("Mouse X") * MouseSpeed;
      transform.Rotate(yaw, 0 , 0);
      
      pitch -= Input.GetAxis("Mouse Y") * MouseSpeed;
      pitch = Mathf.Clamp(pitch, -range, range);
      Camera.main.transform.localRotation = Quaternion.Euler(pitch, 0, 0);
      
      //movement
      float ForwardSpeed = Input.GetAxis("Vertical")*MoveSpeed;
      float SidetoSide = Input.GetAxis("Hortizontal")*MoveSpeed;
       
         //(fix this line)CharacterController cc = (SidetoSide, 0, ForwardSpeed);
         Vector3 speed = new Vector3 speed;
         speed = transform.rotation * speed;
         cc.SimpleMove(speed);
         
      }
     
        
     
     }