Instantiate an object around the center

I'm newby to unity and I wanted to clone the game called " Count Masters " but I have some issues with cloning my objects. When I exit from the doors, my objects they bump into each other and go the other way. I want my clones around my first game object as in the original game. Here is my piece of codes . If someone can help me I'll be so appreciated. using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.InputSystem;

 public class Hareket : MonoBehaviour
 {
     public int speed;
     private Touch touch;
     private float speedModifier;
     public GameObject Ball;
     public GameObject Balls;
     private int door1= 5;
     
 
     // Start is called before the first frame update
     void Start()
     {
        
        speedModifier = 0.01f;
     }
 
     // Update is called once per frame
     void Update()
     {
         
         transform.Translate(Vector3.forward * speed * Time.deltaTime);
         if(Input.touchCount>0)
         {
             touch = Input.GetTouch(0);
             if(touch.phase == UnityEngine.TouchPhase.Moved)
             {
                 transform.position =new Vector3(
                     transform.position.x + touch.deltaPosition.x * speedModifier, 
                     transform.position.y,
                     transform.position.z + touch.deltaPosition.y *speedModifier
                 );
             }
         }
 
     }
     private void OnCollisionEnter(Collision other) 
     {
         if(other.gameObject.tag.Equals("doorSide"))
         {
             Destroy(Ball);
         }
     }
  void OnTriggerExit(Collider other) 
     {
         if (other.gameObject.tag == "door" )
         {
            for (int i = 0; i < door1; i++)
             {
                 //GameObject yeni_top = Instantiate(Top,transform.position,Quaternion.identity);
                 GameObject new_ball = Instantiate(Ball,new Vector3(i,Ball.transform.position.y,i),Ball.transform.rotation);
                 new_ball.transform.parent = Balls.transform; 
                 new_ball.name = "new_ball" + (i+1); 
             }
              
         }
     }

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