My animation makes my character move in only one direction

My character is a cube and the animation I’ve put on it makes it move forward but it online moves i one direction no matter what. How can i make it move left if you press left and move right if you press right?
Is there something wrong with the code?

using UnityEngine;
using System.Collections;
using UnityStandardAssets.CrossPlatformInput;
using UnityEngine.EventSystems;

public class Players : MonoBehaviour
{

    public Rigidbody player;
    Animator anim;

    public static float ySpeed = 0;
    public static float xSpeed = 0;
    public static float zSpeed = 0;



    private void Awake()
    {
        

    }

    private void Start()
    {
        anim = GetComponent<Animator>();


    }

    private void Update()
    {
        

    }

    private void FixedUpdate()
    {
        player.velocity = new Vector3(xSpeed, ySpeed, zSpeed);

    }

    #region Movement

    public void MoveLeft(string moveleft)
    {
        anim.SetBool("Idle", false);
        anim.SetBool("Walk", true);
        xSpeed = 3;

    }
    public void MoveRight(string moveright)
    {
        anim.SetBool("Idle", false);
        anim.SetBool("Walk", true);
        xSpeed = -3;
        
    }
    public void MoveForward(string moveforward)
    {
        anim.SetBool("Idle", false);
        anim.SetBool("Walk", true);
        zSpeed = -3;

    }
    public void MoveBackward(string movebackward)
    {
        anim.SetBool("Idle", false);
        anim.SetBool("Walk", true);
        zSpeed = 3;

    }
    public void StopMove(string stopmove)
    {
        anim.SetBool("Idle", true);
        anim.SetBool("Walk", false);
        zSpeed = 0;
        xSpeed = 0;

    }
        
    public void OnPointerEnter(PointerEventData EventData)
    {
        

    }
    public void OnPointerExit(PointerEventData EventData)
    {
        

    }
    public void OnPointerDown(PointerEventData EventData)
    {
       

    }
    public void OnPointerUp(PointerEventData EventData)
    {
        

    }

    #endregion

    private void OnCollisionEnter(Collision other)
    {
        if (other.gameObject.tag == "Lethal")
        {
            Destroy(player);

        }
        if (other.gameObject.tag == "Invincible")
        {
            Destroy(other.gameObject);
            invincible = true;
        }

    }
}

Doesn’t look like there’s anything wrong with your script so the issue may be on how your animator controller is setup. Try checking your animator conditions if it’s setup right.

At least your animation doesn’t move in Justin bieber.