How Do I Destroy Finished Walking Particle (Clones) in UNITY? - unity3d

Question

VIDEO < in the video I have a walking particles that appear when ever my player moves left and right but I want them to be destroyed after the particles are finished fading away I tried using stop action in unity but that only destroyes the finish particles when the player stops moving and after that the particles will
stop showing up
these are my dublicated particles that will stay in my game forever and cause lag later on I need a way to stop showing them when they are done
IMAGE < the inspector of my particles
image < the name of my particles
is there a way I could some how in my code check if the particle is faded away or check if its finished and then destroy those because sometimes with the destroy it will destroy everything and the particles wont show up if I walk again
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class partscript2 : MonoBehaviour
{
public Joystick joystick2;
public GameObject hays2;
public Rigidbody2D rb;
float horizontalMove = 0f;
// public bool show = true;
public Animator animator3;
// public Transform player;
//public Transform particleposition;
// Start is called before the first frame update
void Start()
{
//transform.position = particleposition.position;
animator3 = GetComponent<Animator>();
//Destroy(gameObject, 1f);
}
//destroy(hays);
// Update is called once per frame
void Update()
{
if (joystick2.Horizontal <= -.2f)
{
Instantiate(hays2, transform.position, hays2.transform.rotation);
}
if (joystick2.Horizontal >= .2f)
{
Instantiate(hays2, transform.position, hays2.transform.rotation);
}
}
}

Answer 1

Firstly, instantiating a game object in update is not the best way to go considering that if your game runs at 60 frames per second you will end up creating 60 game objects each second which can and most likely will affect performance especially on a mobile device which you are working.
But into the point, you can call the Destroy method and pass the duration of the particle.
GameObject hay = Instantiate(hays2, transform.position, hays2.transform.rotation);
ParticleSystem p = hay.GetComponent<ParticleSystem>();
float duration = p.duration + p.startLifetime;
Destroy(hay , duration);
If your particle's duration is fixed you can always skip the part where we get the duration via script and simply pass it in the Destroy method.
GameObject hay = Instantiate(hays2, transform.position, hays2.transform.rotation);
Destroy(hay , 5f);