The bullet doesn't move correctly

Hi, i want to touch the screen and instanciate a bullet in that position

I have this code for instantiate the bullet:

 >  public GameObject bullet;
     public Camera myCam;
 
     private Touch touch;
 
     public int numeroZ = 4;
 
     void Update()
     {
         for (var i = 0; i < Input.touchCount; i++)
         {
             if (Input.GetTouch(i).phase == TouchPhase.Began)
             {
                 Vector3 touchPos = Input.GetTouch(i).position;
                 print(touchPos);
                 touchPos.z = numeroZ;
                 var createPos = myCam.ScreenToWorldPoint(touchPos);
                 Instantiate(bullet, createPos + new Vector3(0, 0, -10), Quaternion.identity);
             }
         }
     }

And this code for the movement of the bullet:

 public Vector3 mov;
     public int lifeTime;
 
     private void Start()
     {
         Invoke("DestroyBullet", lifeTime);
     }
 
     void Update()
     {
         transform.Translate(mov * Time.deltaTime);
     }
 
     void DestroyBullet()
     {
         Destroy(gameObject);
     }

And this is the result, even if I touch the edges of the screen and the bullet instantiate in the the touch position when it moves doesn't go in the touch position direction