Character wont shoot to the left in Unity 2D

I've been dealing with this problem for a few hours now and every tutorial I watch is sort of able to solve the problem but creates a new one. Basically, my 2d character won't shoot to the left even when it's aiming in that direction. I feel like it's a simple line that I need to switch or add but I can't figure it out. Below is my Character Movement script.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Character2DController : MonoBehaviour
 {
 
     Vector3 characterScale;
     float characterScaleX;
 
     void Start()
     {
         characterScale = transform.localScale;
         characterScaleX = characterScale.x;
     }
 
     void Update()
     {
 
         // Move the Character:
         transform.Translate(Input.GetAxis("Horizontal") * 8f * Time.deltaTime, 0f, 0f);
 
         // Flip the Character:
         if (Input.GetAxis("Horizontal") < 0)
         {
             characterScale.x = -characterScaleX;
         }
         if (Input.GetAxis("Horizontal") > 0)
         {
             characterScale.x = characterScaleX;
         }
         transform.localScale = characterScale;
 
 
 
     }
 }
   

Here is my Shooting Script

 using UnityEngine;
 
 public class Weapon : MonoBehaviour
 {
     public Transform firePoint;
     public GameObject bulletPrefab;
 
     void Update()
     {
         if (Input.GetButtonDown("Fire1"))
         {
             Shoot();
         }
     }
 
     void Shoot ()
     {
         Instantiate(bulletPrefab, firePoint.position, firePoint.rotation);
     }
 }

Finally, the Bullet script

 using UnityEngine;
 
 public class Bullet : MonoBehaviour
 {
 
     public float speed = 20f;
     public int damage = 40;
     public Rigidbody2D rb;
     void Start()
     {
         rb.velocity = transform.right * speed;
     }
 
    void OnTriggerEnter2D (Collider2D hitInfo)
     {
         Enemy enemy = hitInfo.GetComponent<Enemy>();
         if (enemy != null)
         {
             enemy.TakeDamage(damage);
         }
         Destroy(gameObject);
     }
 }