How to make bullets spread in unity2D?

Hello, I'm trying to make a 2d game that contains shotgun, so I don't know how exactly to make the bullets spread. I tried to write a code that may solve my problem but doesn't work.

My code:

 public class Shooting : MonoBehaviour
      {
          public Transform firePoint;
          public GameObject bulletPrefab;
          public Weapon currentWeapon;
          private float nextTimeOfFire = 0;
      
          void Update()
          {
              if(Input.GetButtonDown("Fire1"))
              {
                  if(currentWeapon)
                  {
                      if(Time.time >= nextTimeOfFire)
                      {
                          for(float x = 0;x < currentWeapon.GetBullets(); x++)
                          {
                              Shoot();
                          }
                          nextTimeOfFire = Time.time + 1 / currentWeapon.fireRate;
                      }
                  }
              } 
          }
      
          void Shoot(){
              Instantiate(bulletPrefab,firePoint.position, Quaternion.Euler(firePoint.rotation.x, firePoint.rotation.y + Random.Range(-currentWeapon.GetSpread(), currentWeapon.GetSpread()), 0));
                  
          }
      } 
 

**Note:**Weapon class is a scriptable object and that's his code:

  [CreateAssetMenu(fileName = "New Weapon", menuName = "Weapon")]
  public class Weapon : ScriptableObject
  {
      public Sprite currentWeaponSpr; 
      public GameObject bulletPrefab;
      public float fireRate;
      public int damage;
      public float bullet;
      public float spread = 0;
  
  
      public float GetFireRate(){
  
          return fireRate;
      }
  
      public int GetDamage(){
  
          return damage;
      }
  
      public float GetBullets(){
  
          return bullet;
      }
  
      public float GetSpread(){
  
          return spread;
      }
  }

if anyone can help me please give me your hand.