my json saves but doesnt load after i exit my game

to test out my json save function i built my game i clicked my savegame button and it saved my data when i clicked my load button it changed my players coordinates to the coordinates of the player when i saved my game. However when i exited my game and tried to load it didnt save the map or my position heres my saving script: using System;
using UnityEngine;
using System.IO;
public class savemanager : MonoBehaviour {
public string worldfile;
public GameObject worldmap;
public string json;
public string fromjson;
public int recoveredint;
public savedata copy;
public maploader mapreference;
public void Start()
{
loadgame();
}
public void savegame()
{

    savedata data = new savedata { map = worldmap, mapalreadygenerated = true, playerz = GameObject.FindWithTag("Player").transform.position.z, playerx = GameObject.FindWithTag("Player").transform.position.x };
    worldfile = Path.Combine(Application.persistentDataPath, data.map.name);
    json = JsonUtility.ToJson(data);
    if (File.Exists(worldfile))
    {
        File.Delete(worldfile);
    }
    File.WriteAllText(worldfile, json);
    Debug.Log("data saved to" + worldfile);
    fromjson = File.ReadAllText(worldfile);
    copy = JsonUtility.FromJson<savedata>(fromjson);

}
public void loadgame()
{   
    fromjson = File.ReadAllText(worldfile);
    copy = JsonUtility.FromJson<savedata>(fromjson);
    mapreference.savedworld = copy.map;
    GameObject.FindWithTag("Player").transform.position = new Vector3(copy.playerx, 0, copy.playerz);
}

}

and heres the script of the data i want to save:

using System;
using UnityEngine;

[Serializable]
public class savedata {

public GameObject map;
public int[] slotitems;
public float[] slotamounts;
public float playerx;
public float playerz;
public bool mapalreadygenerated;

}

When you re-start your game, worldfile will be a declared variable but it will not have a value. You only assign a value to it in save game.

go to "%userprofile%\AppData\LocalLow<>companyname<>productname" and find the file that you saved, if it’s not there, you’re not saving it. also debug that Path.Combine and see if the path is correctly.