Show Joystick on the left part of the screen only

I made a joystick script and the joystick works perfectly(unity mobile) so the joystick shows up where you tap on the screen, but the problem is that is shows up anywhere on the screen, and I need it to show up on the left side only.

 using System.Collections;
 using System.Collections.Generic;
 
 using UnityEngine;
 using UnityEngine.Rendering;
 using UnityEngine.UI;
 
 
 public class NewBehaviourScript : MonoBehaviour
 {    
     public Transform player;
     private bool Touch;
     private float speed = 10f;
     private Vector2 A;
     private Vector2 B;
     public SpriteRenderer In2;
     public SpriteRenderer Out2;
     bool plsWork = false;
     float pls;
 
     public Transform Out;
     public Transform In;
 
     // Update is called once per frame
     void Update()
     {           
         if (Input.GetMouseButtonDown(0))
         {
             A = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.transform.position.z));
 
             Out.transform.position = A * 1;
             In.transform.position = A * 1;
             Out2.enabled = true;
             In2.enabled = true;
         }
        
         if(Input.GetMouseButtonDown(0))
         {
             Debug.Log("check");
         }
 
         if (Input.GetMouseButton(0))
         {
             Touch = true;
             B = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.transform.position.z));
 
         }
         else
         {
             Touch = false;
         }
     }

     private void FixedUpdate()
     {
         if (Touch)
         {
             Vector2 offset = A - B;
             Vector2 direction = Vector2.ClampMagnitude(offset, 1.0f);
             moveCharacter(direction * -1);
             In.transform.position = new Vector2(A.x + -direction.x, A.y + -direction.y) * 1;
         }
         else
         {
             Out2.enabled = false;
             In2.enabled = false;
         }
     }
 
     void moveCharacter(Vector2 direction)
     {
             player.Translate(direction * speed * Time.deltaTime);           
     }       
 }