How to pause the game until next click & Find Vector3 position in List :/ ?

Hallo Community :)

I got a Problem. I'm trying to code a Ludo game. So i got a dice and a dice roller function and they work well. This is how the code looks --> this is the Dice rollerScript (by clicking on the UI.button)

 public void OnClick()
     {
         
         GetComponent<Rigidbody>().AddForce(Random.onUnitSphere * forceAmaount, forceMode);
         GetComponent<Rigidbody>().AddForce(Random.onUnitSphere * torqueAmount, forceMode);
     }

the other Code is in a seperate script, called currentDicevalue:

 public LayerMask würfelWertColliderLayer = -1;
     public int anzahlVersuche = 0;
     public int aktuellerWert;
 
     // Update is called once per frame
     void Update ()
     {
         
         RaycastHit hit;
 
         if(Physics.Raycast(transform.position, Vector3.up,out hit, Mathf.Infinity, würfelWertColliderLayer))
         {
 
             if (GetComponent<Rigidbody>().IsSleeping())
             {
                 aktuellerWert = hit.collider.GetComponent<WürfelWert>().wert;
                 //Debug.Log(aktuellerWert);
                 anzahlVersuche++;
             }
             //Debug.Log(aktuellerWert);
         }

In my Script called gameController is a while loop "while(playerRed)" do something... (now i only one player)

How to pause my Loop until the next click is done ? (and a new dice number show up)?

I tried it with bools, with increments a int.. but it don' works