I need to make a bullet prefab follow a set path(bezier angle) on an invisible line renderer

i have a mortor tower that will shoot a bullet in a curve, and to do this i am trying to make it follow a bezier curve drawn by a line renderer, but it is either falling off the map, or is going to the default object position. can anyone help me

 private Transform target;
 public GameObject explosionEffect;
 public GameObject impactEffect;
 public GameObject Turret;

 private Vector3[] emptyPositions;

 [HideInInspector]public float stunAmount;

 float stunFloat;

 public float bulletSpeed = 70f;

 public void Seek(Transform _target)
 {
     target = _target;
 }

 private void Update()
 {
     if (target == null)
     {
         Destroy(gameObject);
         return;
     }

     if (Turret == null)
     {
         Destroy(gameObject);
         return;
     }


     Vector3 dir = target.position - transform.position;
     float distanceThisFrame = bulletSpeed * Time.deltaTime;

     if (dir.magnitude <= distanceThisFrame)
     {
         HitTarget();
         return;
     }

     if (Turret.GetComponent<Turret>().useBullet)
     {
         transform.Translate(dir.normalized * distanceThisFrame, Space.World);
     }
     if (Turret.GetComponent<Turret>().useMortar)
     {
         emptyPositions = new Vector3[Turret.GetComponent<Turret>().curvedRenderer.positionCount];
         emptyPositions = Turret.GetComponent<Turret>().curvePositions;
         for (int i = 0; i < Turret.GetComponent<Turret>().curvedRenderer.positionCount; i++)
         {
             transform.localPosition = (emptyPositions[i].normalized * bulletSpeed * Time.deltaTime);
         }
     }
     transform.LookAt(target);
 }