Unity как завершить скрипт по его выполнению

using System.Collections;
using UnityEngine;
 
public class cheese_crate : MonoBehaviour
{
    public Transform cheese;
 
    private Transform cheeseScene = null;
 
    void OnMouseDown()
    {
        if (GameObject.FindWithTag("Котлета") != null)
        {
            if (cheeseScene == null)
            {
                cheeseScene = Instantiate(cheese, new Vector3(-13.81309f, 8.86f, 80.30231f), cheese.rotation);
            }
        }
    }
}

using System.Collections;
using UnityEngine;
 
public class ketchup_bottle : MonoBehaviour
{
    public Transform ketchup;
 
    private Transform ketchupScene = null;
 
    void OnMouseDown()
    {
        if (GameObject.FindWithTag("Сыр") != null)
        {
            if (ketchupScene == null)
            {
                ketchupScene = Instantiate(ketchup, new Vector3( -13.49114f, 8.989f, 80.319f ), ketchup.rotation);
            }
        }
    }
}

ketchupScene = null;
cheeseScene = null;