Ball speed dropping and randomNumber don´t work

So I got 2 problems, both in the same script. Im making a pong game at the moment, a game where you bounce a ball between two lines. And therefor I cant find the way to solve this:

Question 1: I need to make the ball fly to diffrent sides randomly, right now it only goes to the left, why isn´t my code working? :c

Question 2: The ball slows down every time it hit´s something, making the game very boring, is there a way to make it stay at the same speed all the time? Or increasing the speed more and more would work too

Code:

#pragma strict
 
var ballSpeed : float = 100;

function Start () {
 yield WaitForSeconds (2);
 GoBall ();
  
}
 
function OnCollisionEnter2D (colInfo : Collision2D) {
 
 
if (colInfo.collider.tag == "Player")
        {
         rigidbody2D.velocity.y = rigidbody2D.velocity.y/2 + colInfo.collider.rigidbody2D.velocity.y/3;
        audio.pitch = Random.Range(0.5f,1.5f);
        audio.Play();
        }
        else (colInfo.collider.tag == "Player 2");
        {
         rigidbody2D.velocity.y = rigidbody2D.velocity.y/2 + colInfo.collider.rigidbody2D.velocity.y/3;
        audio.pitch = Random.Range(0.5f,1.5f);
        audio.Play();
        }
}


function ResetBall () {

rigidbody2D.velocity.y = 0;
rigidbody2D.velocity.x = 0;
transform.position.x = 0;
transform.position.y = 0;

yield WaitForSeconds (0.5);
GoBall();
}

function GoBall () {

 var randomNumber = Random.Range(1f, 2f);
 
    if (randomNumber <= 1f)  {
 
       rigidbody2D.AddForce (new Vector2 (ballSpeed, 10));
       Debug.Log("shoot left");
    }
 
    else 
        rigidbody2D.AddForce (new Vector2 (ballSpeed, -10));
        Debug.Log("shoot left");
    }

Question 1:

line 42 should be: var randomNumber = Random.Range(1f, 3f);

line 44 should be: if (randomNumber == 1f) {

line 51 should be: rigidbody2D.AddForce (new Vector2 (-ballSpeed, -10));

line 52 should be: Debug.Log(“shoot right”);