Hi,Please i need help comparing conditions in the Update Function

So in my game if a player matches two objects he gets a score,and some more stuff gets instantiated. i am using the update function to check for a match and instantiate stuff but loads of things just keep instantiating.I need help code below

 #pragma strict

 var noOfClicks:int;
 var yes:int;
 function Start () {
 
 }
 
 function Update () {
 if (yes==2){
 yes=0;
 GameObject.Find("caller").SendMessage("First");
 GameObject.FindWithTag("model").SendMessage("Correct");
 GameObject.Find("count").SendMessage("Counter");
 GameObject.Find("manager").SendMessage("Call",1);
 Destroy();
 }
 if(noOfClicks==2&&yes<2){
 noOfClicks=0;
 GameObject.FindWithTag("model").SendMessage("Wrong");
 GameObject.Find("caller").SendMessage("First");
 GameObject.Find("manager").SendMessage("Call",1);
 Destroy();
 }
 
 }
 function Destroy(){
 Destroy(gameObject,1.0);
 }
 function ClickCounter(){
 noOfClicks++;
 }
 function ScoreCounter(){
 yes++;
 }