Get Random Strings from a List Array but exclude some in Unity C#

Get Random Strings from a List Array but exclude some in Unity C#

    public List<string> myListOfStrings; // Declaring Lists of strings

    public List<string> excludeThisWords; // Declaring Lists of string to exclude

    public List<string> newListOfRandomStrings;

    public int numberOfRandomPicks = 4;



    // Start is called before the first frame update
    void Start()
    {
        myListOfStrings.Add("String_1");
        myListOfStrings.Add("String_2");
        myListOfStrings.Add("String_3");
        myListOfStrings.Add("String_4");
        myListOfStrings.Add("String_5");
        myListOfStrings.Add("String_6");
        myListOfStrings.Add("String_7");
        myListOfStrings.Add("String_8");
        myListOfStrings.Add("String_9");
        myListOfStrings.Add("String_10");


        excludeThisWords.Add("String_7");
        excludeThisWords.Add("String_1");

        PickRandomStringsButExcludeSome();
    }

    public void PickRandomStringsButExcludeSome()
    {
        int indexOfRandomWord;

        string wordFromList;

        // Getting 4 Random Words from the List -> numberOfRandomPicks = 4;
        for (int i = 0; i < numberOfRandomPicks; i++) 
        {
            indexOfRandomWord = Random.Range(0, myListOfStrings.Count);

            wordFromList = myListOfStrings[indexOfRandomWord];

            for (int j = 0; j < excludeThisWords.Count; j++)
            {
                if (wordFromList == excludeThisWords[j])
                {
                    while (wordFromList == excludeThisWords[j])
                    {
                        indexOfRandomWord = Random.Range(0, myListOfStrings.Count);

                        wordFromList = myListOfStrings[indexOfRandomWord];
                    }
                }
            }
            //Debug.Log(wordFromList);

            newListOfRandomStrings.Add(wordFromList);

            excludeThisWords.Add(wordFromList);

            //Debug.Log(excludeThisWords);
        }
    }