How do I change when my RigidBody 2D initializes? C# Question/Noob,How do I change when rigidbody initializes?

[rowanfitz5]

Currently, the ball immediately drops when i play the game, not waiting for me to press space. I want the ball to stay in a constant position until I press the space bar.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class movestartscreen : MonoBehaviour
{
    public GameObject ballz;
    public Rigidbody2D ballzRigidBody;
    public Vector2 joe;
    public int x;
    public int y;
    // Start is called before the first frame update
    void Start()
    {

        ballzRigidBody = ballz.AddComponent<Rigidbody2D>();
        ballzRigidBody.mass = 0;  
    }

    // Update is called once per frame
    void Update()
    {
        transform.position = new Vector2(x, y);
        if (Input.GetKeyDown("space")) {
            x = x + 400;
            y = y + 400;
            ballzRigidBody.mass = 1;
        }
    }
}

[Hellium]

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

 public class movestartscreen : MonoBehaviour
 {
     public GameObject ballz;
     public Rigidbody2D ballzRigidBody;
     public Vector2 joe;
     public int x;
     public int y;

     void Awake()
     {
 
         ballzRigidBody = ballz.AddComponent<Rigidbody2D>();
         ballzRigidBody.Sleep();
     }
 
     // Update is called once per frame
     void Update()
     {
         transform.position = new Vector2(x, y);
         if (Input.GetKeyDown("space"))
         {
             x = x + 400;
             y = y + 400;
             if( ballzRigidBody.IsSleeping() )
                 ballzRigidBody.WakeUp();
         }
     }
 }