How to Play a Sound in Certain value in IF statement? Unity C#

How to play a random sound in different if statements? example when i will be in 0<25 play some sound one or twice, when value(slider) is in 25 to 40 play more sounds in the row... i wanna simulate breather but i think this script is too much to handle for me.. Sound is playing only once and only when i start game. Looks like Unity read only first If statement and after will nothing happen...

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class PlayingSoundsystem: MonoBehaviour

{

private AudioSource breath_sound;

[SerializeField]
private AudioClip[] breath_Clip;

private AudioClip breath;

public float volume_Min, volume_Max;

public GameObject Textvalue;

public Slider mainSlider;

public GameObject Spotlight;

public GameObject blur;

private void Start()
{
    breath_sound = GetComponent<AudioSource>();


}


private void Update()
{
    Textvalue.GetComponent<Text>().text = mainSlider.value.ToString();


    if (Spotlight.GetComponent<Light>().enabled == false)
    {
        mainSlider.value += 1*Time.deltaTime;

    }
    else
    {
        
        mainSlider.value -= 0.5f * Time.deltaTime;
    }

    if (mainSlider.value <= 25)
    {
        breath_sound.volume = Random.Range(volume_Min, volume_Max);
        breath_sound.clip = breath_Clip[Random.Range(0, breath_Clip.Length)];
        breath_sound.PlayOneShot(breath_sound.clip);
        //Play Random Sound from 13 different one's
    }
    
    if (mainSlider.value > 25 && mainSlider.value <= 40)
    {
        int index = Random.Range(0, breath_Clip.Length);
        breath = breath_Clip[index];
        breath_sound.clip = breath;
        breath_sound.Play();
        

    }
    if (mainSlider.value > 40 && mainSlider.value <= 60)
    {
        breath_sound.volume = Random.Range(volume_Min, volume_Max);
        breath_sound.clip = breath_Clip[Random.Range(0, breath_Clip.Length)];
        breath_sound.PlayOneShot(breath_sound.clip);
    }
    if (mainSlider.value > 60 && mainSlider.value <= 85)
    {
        breath_sound.volume = Random.Range(volume_Min, volume_Max);
        breath_sound.clip = breath_Clip[Random.Range(0, breath_Clip.Length)];
        breath_sound.PlayOneShot(breath_sound.clip);
        

    }
    if (mainSlider.value > 85 && mainSlider.value < 100)
    {
        
        breath_sound.volume = Random.Range(volume_Min, volume_Max);
        breath_sound.clip = breath_Clip[Random.Range(0, breath_Clip.Length)];
        breath_sound.PlayOneShot(breath_sound.clip);
        
    }
    if (mainSlider.value == 100)
    {
        
    }




}

private void OnTriggerEnter(Collider other)
{
    if(other.gameObject.CompareTag ("Jumpscare"))
    {
        mainSlider.value += 5;

        
    }
    
}

public void SubmitSliderSetting()
{
    
    Debug.Log(mainSlider.value);
}

}