SharedPreferences dont save
===

my problem: When I want to save a sharedPreference and restart the app, it doesnt load the right value..
My code:

    int punkteint = 0;
    TextView test1;
    String points;
    private static String SHARED_PREF_ID = "0";
    
    public void onCreate(Bundle savedInstanceState) {
        test1 = (TextView) findViewById(R.id.test1);
        SharedPreferences load = getSharedPreferences(SHARED_PREF_ID, 0);
        points = load.getString("punkte", "0");
        points = SHARED_PREF_ID;
        test1.setText(points);
        mehrPunkte();
        }


    public void mehrPunkte() {
    	
    	punkteint++;
    	
    	SHARED_PREF_ID = Integer.toString(punkteint);
        SharedPreferences load = getSharedPreferences(SHARED_PREF_ID, MODE_PRIVATE);
        points = load.getString("punkte", "0");
        points = SHARED_PREF_ID;
        test1.setText(points);
        
        SharedPreferences save = getSharedPreferences(SHARED_PREF_ID, MODE_PRIVATE);
        save.edit().putString("punkte", SHARED_PREF_ID).commit();
    }

What did I do wrong here?
Hope you can help me