so, im very new to coding, im doing a peggle style game and i wanted to make a score system that when i hit some balls each ball has its respective score and those points are added to a general points because its round based and if i reach certain points in that round i get an extra ball.

if someone could help me i would be very tankful idk what to type i need to say more things to post and idk how i can explain this with more detail it looks like a very simple thing to do

void Update() {
    Ballcounter.text = Scriptholder.balls.ToString();
    NewBall();
    //if (ballcollision.roundpoints >= 750 && extraball = true)
   // {
    //    Scriptholder.balls += 1;
   //     extraball = false;
   // }
}
void NewBall()
    {
          if (Scriptholder.balls <= 2)
        {
             Ballcounter.color = Color.red;
        }
        else if (Scriptholder.balls >= 2)
        {
            Ballcounter.color = Color.green; 
        }
    if (ballcollision.roundpoints == 0)
    {
        newBall[0].SetActive(true);
        newBall[1].SetActive(false);
        newBall[2].SetActive(false);
        newBall[3].SetActive(false);
        newBall[4].SetActive(false);
        newBall[5].SetActive(false); 
    }
    
    if (ballcollision.roundpoints >= 150)
    {
        newBall[0].SetActive(false);
        newBall[1].SetActive(true);
        newBall[2].SetActive(false);
        newBall[3].SetActive(false);
        newBall[4].SetActive(false);
        newBall[5].SetActive(false);   
    }
    if (ballcollision.roundpoints >= 300)
    {
        newBall[0].SetActive(false);
        newBall[1].SetActive(false);
        newBall[2].SetActive(true);
        newBall[3].SetActive(false);
        newBall[4].SetActive(false);
        newBall[5].SetActive(false); 
    }
    
    if (ballcollision.roundpoints >= 450)
    {
        newBall[0].SetActive(false);
        newBall[1].SetActive(false);
        newBall[2].SetActive(false);
        newBall[3].SetActive(true);
        newBall[4].SetActive(false);
        newBall[5].SetActive(false);   
    }
    if (ballcollision.roundpoints >= 600)
    {
        newBall[0].SetActive(false);
        newBall[1].SetActive(false);
        newBall[2].SetActive(false);
        newBall[3].SetActive(false);
        newBall[4].SetActive(true);
        newBall[5].SetActive(false); 
    }
    
    if (ballcollision.roundpoints >= 750)
    {
        newBall[0].SetActive(false);
        newBall[1].SetActive(false);
        newBall[2].SetActive(false);
        newBall[3].SetActive(false);
        newBall[4].SetActive(false);
        newBall[5].SetActive(true);
        Scriptholder.balls += 1;
    }
}

//for the extra points

  void Update()
    {
        Debug.Log(Health);
        score.text = points.ToString();

        roundPointsTXT.text = ballcollision.roundpoints.ToString();

        points += ballcollision.roundpoints;