how to rolle a ball by touch or mouse

hello , i cant finde a toutrial how to move and roll a ball in android Pleas helpe me , thanks ♥ and i have code but i cant roll a ball;

 private Vector2 lastmousePostion;
 private GameObject currentLevel;
 private bool MoveByTouch;
 private Vector3 _mousStartPos, PlayerStartPos;
 public float maxAcceleration;
 
   
 private Rigidbody rb;
 
 public float speedtourge = 5f;

 private void Start()
 {
     maxAcceleration = 10f;
     rb = GetComponent<Rigidbody>();

 }
 void Update()
 {


     if (Input.GetMouseButtonDown(0))
     {
         MoveByTouch = true;
         Plane plane = new Plane(Vector3.up * Time.deltaTime, 0f);
         float Distance;
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         if (plane.Raycast(ray, out Distance))
         {
             _mousStartPos = ray.GetPoint(Distance);
             PlayerStartPos = transform.position;
         }
     }
     else if (Input.GetMouseButtonUp(0))
     {
         MoveByTouch = false;
     }

     if (MoveByTouch)
     {
         Plane plane = new Plane(Vector3.up * Time.deltaTime, 0f);
         float Distance;
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         if (plane.Raycast(ray, out Distance))
         {
             Vector3 MousePos = ray.GetPoint(Distance);
             Vector3 move = MousePos - _mousStartPos;
             Vector3 Controller = PlayerStartPos + move;
             Controller.x = Mathf.Clamp(Controller.x, -8.6f, 8.6f);
             transform.position = Vector3.Lerp(transform.position, new Vector3(Controller.x, transform.position.y, transform.position.z), Time.deltaTime * maxAcceleration);
            rb.AddTorque(transform.up * speedtourge * Controller.x);
         }
     }

}