How do I make a player shoot right and left 2D platformer firing left and right, help!

How do I make a player shoot right and left 2D platformer firing left and right, help! Here is my script I'm making the game for android

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

public class movo : MonoBehaviour { float bulletSpeed = 500f; public Animator anim; public Transform barrel; public Rigidbody2D bullet; private Rigidbody2D rb; private bool moveLeft; private bool moveRight; private float horizontalMove; public float speed = 5; public SpriteRenderer sp;

 private void Start()
 {
     anim = GetComponent<Animator>();
     rb = GetComponent<Rigidbody2D>();
     sp = GetComponent<SpriteRenderer>();
 
     moveLeft = false;
     moveRight = false;
 }
 
 public void PointerDownLeft()
 {
     anim.SetBool("run", true);
     moveLeft = true;
 }
 
 public void PointerUpLeft()
 {
     anim.SetBool("run", false);
     moveLeft = false;
 }
 
 public void PointerDownRight()
 {
     anim.SetBool("run", true);
     moveRight = true;
 }
 
 public void PointerUpRight()
 {
     anim.SetBool("run", false);
     moveRight = false;
 }
 
 void Update()
 {
     MovementPlayer();
     if (CrossPlatformInputManager.GetButtonDown ("Fire1"))
         Fire ();
 }
 
 void MovementPlayer()
 {
     if (moveLeft)
     {
         sp.flipX = true;
         horizontalMove = -speed;
     }
 
     else if (moveRight)
     {
         sp. flipX = false;
         horizontalMove = speed;
     }
 
     else
     {
         horizontalMove = 0;
     }
 }
 
 private void FixedUpdate()
 {
     rb.velocity = new Vector2(horizontalMove, rb.velocity.y);
 }

 void Fire()
 {
     var firedBullet = Instantiate (bullet, barrel.position, barrel.rotation);
     firedBullet.AddForce (barrel.up * bulletSpeed);
 }

and this code to Bullet

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class DestroyInTime : MonoBehaviour { [SerializeField] float destroyTime = 2f;

 void Start() {
     Destroy(gameObject, destroyTime);
  
 }

}