Fix broken / overlapping Instagram embed for WordPress

fix-broken-instagram.php

<?php
/**
 * Plugin Name: Fix broken Instagram oEmbed
 * Description: Fixes an issue with Instagram posts being broken when multiple posts are oEmbedded.
 * Version: 1.0
 * Author: khromov
 */

/**
 * Remove Instagram embed.js script on each embed
 */
add_filter('embed_oembed_html', function($html, $url, $attr, $post_id) {
  $regex =    '/<script.*instagram\.com\/embed.js.*\s?script>/U';
  $regex_2 =  '/<script.*platform\.instagram\.com\/.*\/embeds\.js.*script>/U';

  if(preg_match($regex, $html) || preg_match($regex_2, $html)) {
    add_filter('kh_has_instagram_embed', '__return_true');

    $html = preg_replace($regex, '', $html);
    $html = preg_replace($regex_2, '', $html);

    return $html;
  }

  return $html;
}, 100, 4);

/**
 * Enqueue the embed.js script once at the bottom of the page, if at least one Instagram embed is enqueued
 */
add_filter('wp_footer', function() {
  if(apply_filters('kh_has_instagram_embed', false)) :
    ?>
      <script async defer src="//www.instagram.com/embed.js"></script>
    <?php
  endif;
}, 999);

Hello, Im new to this also and dont understand how to install it. I have tried downloading the zip and then moving it into my wordpress folder on my computer and the importing the file it into my wordpress.org via the wordpress importer but it is not showing up in my admin side bar or in my plug ins ( I saved it under plug ins) Can you help me?

figured it out! Yay