animations back and forth Again

I have done this a while back but now its for camera transitions. I built this script based on the last one an have not change much of any thin except for a few things I didn't need and added some variables i added for telling if the first person is true or false. I can't find a way to make it work. The other question was called "Multiple animations for one character" It halfway works I have to change some of the stuff in the editors window to go back and fourth but I can only use the key and work once and mode stays 0

 using UnityEngine;
 using System.Collections;
 
 public class camrascript : MonoBehaviour {
     public int mode = 0;
     public bool firstperson = true;
     public bool thirdperson = false;
 
     void Update () 
     {
         animation.wrapMode = WrapMode.ClampForever;
     if (Input.GetKeyDown ("t")) {
     if(mode == 0) {
 animation.Play("switchone");
         mode = 1;
     }
 
 
     if(mode == 1) {
 animation.Play("switchtwo");
        mode = 0;
     }
 }
         if(mode == 1){
             firstperson = false;
             thirdperson = true;
 
 
         }
         if(mode == 1){
             firstperson = true;
             thirdperson = false;
 
         }
 }
 
 }