Value changes after using it in another script, why?

Hello

I finally could solve my problem with playerpref, but now i have a new problem.

I have the playerpref value and want to compare it with the value i put on every "LevelImage".

But as soon i click for example on Level 3 it changes the value 4 to 7. i put everthing into the console so i can see whats happening with my values.

here are the two scripts.

public class AktuellesLevel : MonoBehaviour {

 public int Level;

 // Start is called before the first frame update
 void Start()
 {
     Level = GetComponent<AktuellesLevel>().Level;
    

 }

 // Update is called once per frame
 void Update()
 {
     
 }

 public void OnTriggerEnter2D(Collider2D collision)
 {

    

     Debug.Log(Level);
  
    

 }

}

And here the second

public class LoadManager : MonoBehaviour { private string LevelChoice; private AktuellesLevel AL; public int aktuellesLevel;

 // Start is called before the first frame update
 private void Start()
 {
     AL = FindObjectOfType<AktuellesLevel>();
     aktuellesLevel = PlayerPrefs.GetInt("farthestLevel");

 }

 // Update is called once per frame
 void Update()
 {
     if (Input.GetMouseButtonDown(1))
     {
         if (AktuellesLevel > AL.Level)
         {
             Select();
         }
         else
         {
             Debug.Log("Vorheriges Level noch nicht abgeschlossen");
         }
     }
 }

 public void Select()
 {


     Debug.Log(AL.Level);
     Debug.Log(AktuellesLevel);

     SceneManager.LoadScene(LevelChoice);
     
 }

 public void OnTriggerEnter2D(Collider2D collision)
 {
   
     LevelChoice = collision.name;
   
     
     
 }

 

 public void Hauptmeue()
 {
     SceneManager.LoadScene(0);
 }

In the second script i shouldt even be able to choose level3 but it is still loading. And after loading the value AL.Level is 7, not 4 how i set it in the inspector.

I hope someone can help me. I try for a long time now to make to player play each level after another, i seems really complicated to me.

Thanks