private void Awake()
    {
        if (Instance != null)
        {
            Destroy(gameObject);
            return;
        }
        else
        {
            Instance = this;
        }

        shouldCoutTime = false;
        timerText      = GetComponent <TextMeshProUGUI>();
        timer          = 0.0f;
        Hour           = 0;
        Minute         = 0;
        Second         = 0;
        millisecond    = 0;
    }
 private void OnDestroy()
 {
     Instance = null;
 }