how do a auto load ??

hi! i have a auto save but i cant do a auto load when the program start. my save code is

 using UnityEngine;
 using System.Collections;
 
 public class Save : MonoBehaviour {
 
     float saveTimer = 0.0f;
     
     
     void Update(){
         saveTimer += 1.0f * Time.deltaTime;
         if(saveTimer > 30.0f){
             saveTimer = 0.0f;
             SaveGame();
             PlayerPrefs.SetFloat("gold", GetComponent<Click>().Gold);
             PlayerPrefs.SetFloat("goldperclick", GetComponent<Click>().goldperclick);
             PlayerPrefs.SetFloat("cost", GetComponent<ItemMananger2>().cost);
             PlayerPrefs.SetFloat("cost", GetComponent<updatemananger>().cost);
         }
     }
     
     
     void SaveGame()
     {
         GetComponent<Click>().Gold = PlayerPrefs.GetFloat("gold");
         GetComponent<Click>().goldperclick = PlayerPrefs.GetFloat("goldperclick");
         GetComponent<ItemMananger2>().cost = PlayerPrefs.GetFloat("cost");
         GetComponent<updatemananger>().cost = PlayerPrefs.GetFloat("cost");
         GetComponent<updatemananger>().count=PlayerPrefs.GetInt("count");
         GetComponent<ItemMananger2>().count=PlayerPrefs.GetInt("count");
     }
 

some can help to do the load?