[C#] Creating falling coins

There's a lot in there to go over... i think its been done quite poorly so maybe delete it and re-write this in a better way...

     private GameObject[] pooledBronze;
     public GameObject silverCoin;
     public GameObject goldCoin;
 
     public GameController gameControl;
 
     public GameObject bronzePrefab;
 
     private int bronzeCoinAmount = 40;
     private int silverCoinAmount = 2;
     private int goldCoinAmount = 1;
 
     private int currentBronzeCoin = 0;
     private int currentSilverCoin = 0;
     private int currentGoldCoin = 0;
 
     public float coinObjMin = -3f;
     public float coinObjMax = 9f;
     private float spawnYPos = 10;
     public float timeToSpawn = 0f;
     private Vector2 coinPoolPos = new Vector2(-3, 10);
 
 
     // Use this for initialization
     void Start () {
         // this does nothing. it gets the component but
         // does nothing with it nor assign it to something
         gameControl.GetComponent<GameController>();
     }
 
     // Update is called once per frame
     void FixedUpdate () {
 
         timeToSpawn += 2.0f * Time.deltaTime;
 
         if (timeToSpawn >= 9f)
         {
             spawnCoins();
             timeToSpawn = 0f;
         }
 
     }
 
     // overall this method is quite senseless and should be re-done
     private void spawnCoins()
     {
         var thing = new GameObject[0];
         pooledBronze = new GameObject[bronzeCoinAmount];
         for (int i = 0; i < bronzeCoinAmount; i++)
         {
             // coinPoolPos never changes which is why they all spawn in the same spot.
             pooledBronze[i] = (GameObject)Instantiate(bronzePrefab, coinPoolPos, Quaternion.identity);
         }
 
         // this block below will never get called.
         // in void FixedUpdate () if timeToSpawn >= 9 then you spawn and then set it to 0
         // therefor it will never be > 60.
         if (gameControl.gameOver == false && gameControl.gameStart && timeToSpawn >= 60.0f)
         {
             float spawnXPos = Random.Range(coinObjMin, coinObjMax);
             pooledBronze[currentBronzeCoin].transform.position = new Vector2(spawnXPos, spawnYPos);
             currentBronzeCoin++;
 
             if(currentBronzeCoin >= bronzeCoinAmount)
             {
                 currentBronzeCoin = 0;
             }
 
             // if the statement above is called then this will be called so
             // factor this out.
             if(currentBronzeCoin == 0)
             {
                 // this could end up being a recurring method == not good.
                 spawnCoins();
             }
 
             // this is a combination of the above 2 if statements into one simple one.
             if(currentBronzeCoin >= bronzeCoinAmount || currentBronzeCoin == 0)
             {
                 currentBronzeCoin = 0;
                 spawnCoins();
             }
 
 
         }
     }