How to have animation play correctly

so here is the problem:

SORRY FOR THE MUSIC I WAS ON PANDORA

https://www.youtube.com/watch?v=_0gulLySZt8

the animation keeps on spinning and then stops, it doesnt peek like its supposed to, the animation isnt playing how its supposed to, here is the script: var lookSensitivity : float = 5;

 @HideInInspector
 
 var currentXRotation : float;
 
 @HideInInspector
 
 var currentYRotation : float;
 
 @HideInInspector
 
 var xRotation : float;
 
 @HideInInspector
 
 var yRotation : float;
 
 @HideInInspector
 
 var xRotationVelocity : float;
 
 @HideInInspector
 
 var yRotationVelocity : float;
 
 var lookSmoothDamp : float = 5;
 
 var paused : boolean = false;
 
 //for Pause Menu
 
 var guiBackround : GameObject;
 
 var pauseMenu : GameObject;
 
 // for peeking
 
 var Cam : GameObject;
 
 static var nextToWall = false;
 
 // Flashlight (Not the actual flashlight model just the spotlight
 
 var Flashlight : GameObject;
 
  
 
 function Start()
 
 {
 
         nextToWall = false;
 
         Flashlight.active=false;
 
 }
 
  
 
 function Update()
 
 {
 
         if(Input.GetKeyDown("escape") && paused == false)
 
    {  
 
    paused = true;    
 
    Time.timeScale = 0;
 
    guiBackround.active=true;
 
    pauseMenu.active=true;  
 
    }
 
    else if(Input.GetKeyDown("escape") && paused == true)
 
    {      
 
    paused = false;  
 
    Time.timeScale = 1;
 
    guiBackround.active=false;
 
    pauseMenu.active=false;
 
    }
 
    else if(nextToWall == false && Input.GetKeyDown(KeyCode.Q))
 
    {
 
         animation.Play("Peek(Q)");
 
    }
 
     else if(nextToWall == false && Input.GetKeyDown(KeyCode.E))
 
         {
 
                 animation.Play();
 
         }
 
     else if(nextToWall == true)
 
         {
 
                 // Stop all animations
 
         animation.Stop();
 
         }
 
         else if(Input.GetKeyDown(KeyCode.F) && Flashlight.active==false)
 
    {      
 
                 Flashlight.active=true;
 
    }
 
         else if(Input.GetKeyDown(KeyCode.F) && Flashlight.active==true)
 
    {      
 
                 Flashlight.active=false;
 
    }
 
         yRotation += Input.GetAxis("MouseX") * lookSensitivity;
 
         xRotation -= Input.GetAxis("MouseY") * lookSensitivity;
 
        
 
         xRotation = Mathf.Clamp(xRotation, -90, 90);
 
        
 
         currentXRotation = Mathf.SmoothDamp(currentXRotation, xRotation, xRotationVelocity, lookSmoothDamp);
 
         currentYRotation = Mathf.SmoothDamp(currentYRotation, yRotation, yRotationVelocity, lookSmoothDamp);
 
        
 
         transform.rotation = Quaternion.Euler(currentXRotation, currentYRotation, 0);
 
 }