my localization loader only load one text's value

im trying to make own simple localization system but there's one problem . my localization system's text loader only load one text's value. here's my codes

Test.cs using System; using System.Collections; using System.Collections.Generic; using System.IO; using UnityEngine;

 public class Test : MonoBehaviour
 {
     public ItemList jsonKey;
     
     public bool isReady = false;
     string path;
     string jsonText;
     public string selectedLang;
     public string key;
 
     public Dictionary<string, string> itemDic= new Dictionary<string, string>();
 
     public void Start()
     {
         selectedLang = "en-";
         
         SetDic();
     }
 
     public void SetDic()
     {
         path = Application.streamingAssetsPath + "/turkish.json"; 
         jsonText = File.ReadAllText(path);
 
         jsonKey = JsonUtility.FromJson<ItemList>(jsonText);
 
         for (int i = 0; i < jsonKey.itemList.Length; i++)
         {
             itemDic.Add(jsonKey.itemList[i].key, jsonKey.itemList[i].value);
         }
         isReady = true;
     }
 }

TestLoader.cs

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class TestLoader : MonoBehaviour
 {
     public Test test;
     public string keyName;
     
     public void Start()
     {
         GameObject tempObj = GameObject.Find("Localization Manager");
         test = tempObj.GetComponent<Test>();
         Load();
     }
 
     public void Load()
     {
         test.key = test.selectedLang + keyName;
 
         if (test.isReady)
         {
             if (test.itemDic.ContainsKey(test.key))
             {
                 this.GetComponent<Text>().text = test.itemDic[test.key]; 
                 Debug.Log(test.itemDic[test.key]);
             }
         }
     }
 }