Problem: Shoot bullet in direction of player C#

I'm doing a 2D platformer game where the enemy should shoot to the player. My problem is, that the bullets always fly in the right direction, even if the enemy is looking to the left side(if the player is at the right side of the enemy, the shooting works perfect). The bullet spawn at the left side, but tries to change his direction to the right. Example: at the blue points the bullets spawn, but like you can see in the picture below, the bullets fly to the right direction. Script for the direction:

 public class EnemyShoot : MonoBehaviour {
 
     float speed;
     Vector2 myDirection;
     bool isReady;
 
     void Awake(){
         speed = 5f;
         isReady = false;
     }
     
     void Start () {
     
     }
 
     public void SetDirection(Vector2 direction) {
         myDirection = direction.normalized;
         isReady = true;
     }
 
     void Update () {
     
         if (isReady) {
             Vector2 position = transform.position;
             position += myDirection * speed * Time.deltaTime;
             transform.position = position;
         }
     }
 }

Method, where the bullet get shot:

 void FireEnemyBullet()
     {
         GameObject player = GameObject.Find ("Player");
         if(player != null)
         {
             
             GameObject bullet = (GameObject)Instantiate(waterball);
             bullet.transform.position = transform.position;
             
             Vector2 direction = player.transform.position - bullet.transform.position;
             bullet.GetComponent<EnemyShoot>().SetDirection(direction);
         }
         
     }