issue with the rigid body x axis ,addforce doesn't work as it should for x axis

This piece of code attached to a bullet game object that is supposed to get the distance between the other player and bullet and move the other player in the opposite direction only works properly along the Y axis. Basically when I shoot another player it just causes them to jump up. This is not to say that it doesn't move at all at the x axis, as the x axis of the player did show small change in the inspector, and when I lowered the mass to 0.001 the bullets made the object teleport a little bit on the x axis.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using Photon.Pun;
 public class bullet : MonoBehaviour
 {
     playercont victim;
     private float speed = 5;
     private Rigidbody2D rb;
     float life = 4;
 
      float dur = 5.5f;
     float push = 1.5f;
     // Start is called before the first frame update
     void Start()
     {
         rb = GetComponent<Rigidbody2D>();
         rb.velocity = transform.up * speed;
     }
     private void FixedUpdate()
     {
         life -= Time.deltaTime;
         if (life <= 0)
         {
             Destroy(gameObject);
         }
     }
     
            
     private void OnTriggerEnter2D(Collider2D other)
     {
         Rigidbody2D enem = other.GetComponent<Rigidbody2D>();
         if (enem!= null)
         {
             Vector2 dif = enem.transform.position - rb.transform.position;
             dif = dif.normalized * push;
             enem.AddForce(dif);
            StartCoroutine(knocktime(enem));
             Destroy(gameObject);
         }
    }
 
 void Update()
     {
         
     }
     private IEnumerator knocktime(Rigidbody2D enem)
     {
         if (enem != null)
         {
             yield return new WaitForSeconds(dur);
             enem.velocity = Vector2.zero;
            
         }
 
     }
 }

Keep in mind that while this is a platformer, I turned of gravity to make sure it's not friction, if it was working properly it would just float away, which it didn't.

,This piece of code attached to a bullet game object that is supposed to get the distance between the other player and bullet and move the other player in the opposite direction only works properly along the Y axis. Basically when I shoot another player it just causes them to jump up. This is not to say that it doesn't move at all at the x axis, as the x axis of the player did show small change in the inspector, and when I lowered the mass to 0.001 the bullets made the object teleport a little bit on the x axis.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using Photon.Pun;
 public class bullet : MonoBehaviour
 {
     playercont victim;
     private float speed = 5;
     private Rigidbody2D rb;
     float life = 4;
 
      float dur = 5.5f;
     float push = 1.5f;
     // Start is called before the first frame update
     void Start()
     {
         rb = GetComponent<Rigidbody2D>();
         rb.velocity = transform.up * speed;
     }
     private void FixedUpdate()
     {
         life -= Time.deltaTime;
         if (life <= 0)
         {
             Destroy(gameObject);
         }
     }
     
            
     private void OnTriggerEnter2D(Collider2D other)
     {
         Rigidbody2D enem = other.GetComponent<Rigidbody2D>();
         if (enem!= null)
         {
             Vector2 dif = enem.transform.position - rb.transform.position;
             dif = dif.normalized * push;
             enem.AddForce(dif);
            StartCoroutine(knocktime(enem));
             Destroy(gameObject);
         }
    }
 
 void Update()
     {
         
     }
     private IEnumerator knocktime(Rigidbody2D enem)
     {
         if (enem != null)
         {
             yield return new WaitForSeconds(dur);
             enem.velocity = Vector2.zero;
            
         }
 
     }
 }

Keep in mind that while this is a platformer, I turned of gravity to make sure it's not friction, if it was working properly it would just float away, which it didn't.