I can't coexist by character direction of camera vector AND character rotate by Input

I have the full code of my character controller, my code can independent operation of character direction of the camera vector when the camera rotate by mouse AND Character rotate facing the input direction

but CAN'T USE THESE TWO CODE AT THE SAME COMPILED PROGRAM

the problem code is at the end.

How can I solve this problem with just modify or add some code?

Thanks.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CharacrterControllerTest : MonoBehaviour
 {
 
     public CharacterController MyController;
     GameObject character;
 
     // Update is called once per frame
     public float Speed = 0f;
     public float WalkSpeed = 3f;
     public float RunSpeed = 6f;
     public float GravityStrength = 5f;
     public float JumpSpeed = 10f;
     public Transform CameraTransform;
 
     public Camera targetCamera;
 
     private Camera cam;
     private float currentX = 0.0f;
 
     //private Transform m_Cam;                  // A reference to the main camera in the scenes transform
     private Vector3 m_CamForward;             // The current forward direction of the camera
 
     float _doubleTapTime;
 
     private void AlignToCamera()
     {
         transform.rotation = Quaternion.Euler(transform.eulerAngles.x, targetCamera.transform.eulerAngles.y, transform.eulerAngles.z);
     }
 
 
 
     // Use this for initialization
     void Start()
     {
 
     }
 
     // Update is called once per frame
 
     void Update()
     {
 
         //get input from the player
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
 
 
         //X, Y, Z
         Vector3 myVector = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         Vector3 NextDir = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         // Get the direction of the camera
         Vector3 moveDirection = Camera.main.transform.forward;
         // Make this vector planar (xz-plane)
         moveDirection.y = 0.0f;
         // Normalize to get a unit vector (optional)
         Vector3.Normalize(moveDirection);
 
         myVector = myVector * Speed * Time.deltaTime;
 
         bool doubleTap = false;
 
         #region doubleTap
 
         if (Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.D))
         {
             if (Time.time < _doubleTapTime + .3f)
             {
                 doubleTap = true;
             }
             _doubleTapTime = Time.time;
         }
 
         #endregion
 
         if (Input.GetKey(KeyCode.W) == false && Input.GetKey(KeyCode.A) == false && Input.GetKey(KeyCode.S) == false && Input.GetKey(KeyCode.D) == false)
         {
             Speed = WalkSpeed;
         }
 
         if (doubleTap)
         {
             Speed = RunSpeed;
         }
 
         myVector = CameraTransform.rotation * myVector;     //rotate input by direction of camera
 
         //how do we get the jump button?
         float verticalVelocity = MyController.velocity.y - GravityStrength * Time.deltaTime;
 
         if (Input.GetButtonDown("Jump") && MyController.isGrounded)
         {
             //add jumpspeed to vertical velocity
             verticalVelocity += JumpSpeed;
         }
 
         myVector.y = verticalVelocity * Time.deltaTime;
 
         // use input to move the character
         MyController.Move(myVector);
 
 
 
         //transform.Translate(myVector * Speed * Time.deltaTime, Space.World);
 
         if (myVector.x != 0 || myVector.z != 0)
         {
             // ↓ HERE IS THE MAIN PROBLEM!!
             transform.rotation = Quaternion.LookRotation(NextDir, Vector3.up);
             transform.rotation = Quaternion.LookRotation(moveDirection, Vector3.up);
             // ↑ HERE IS THE MAIN PROBLEM!!
         }
 
 
     }
 }