Help me pls

Brothers, I want someone to help me solve this puzzle. Trying has exhausted me for two days. I almost lost my eye.
I want to incorporate this black magic into my Blogger website
/////////Cloudflare Stream/////////////
<html>
  <head>
    <link
      href="https://cdnjs.cloudflare.com/ajax/libs/video.js/7.10.2/video-js.min.css"
      rel="stylesheet"
    />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/video.js/7.10.2/video.min.js"></script>
  </head>
  <body>
    <video-js id="vid1" controls preload="auto">
      <source
        src="https://customer-m033z5x00ks6nunl.cloudflarestream.com/b236bde30eb07b9d01318940e5fc3eda/manifest/video.m3u8"
        type="application/x-mpegURL"
      />
    </video-js>

    <script>
      const vid = document.getElementById('vid1');
      const player = videojs(vid);
    </script>
  </body>
</html>

##############################################
///////////////github///////////
<html>
  <head>
    <!-- Load dependent stylesheets. -->
    <link href="path/to/video-js.css" rel="stylesheet" />
    <link rel="stylesheet" href="path/to/videojs-contrib-ads.css" />
    <link rel="stylesheet" href="path/to/videojs.ima.css" />
  </head>

  <body>
    <video
      id="content_video"
      class="video-js vjs-default-skin"
      controls
      preload="auto"
      width="YOUR_VIDEO_WIDTH"
      height="YOUR_VIDEO_HEIGHT"
    >
      <source src="PATH_TO_YOUR_CONTENT_VIDEO" type="YOUR_CONTENT_VIDEO_TYPE" />
    </video>
    <!-- Load dependent scripts -->
    <script src="/path/to/video.js"></script>
    <script src="//imasdk.googleapis.com/js/sdkloader/ima3.js"></script>
    <script src="/path/to/videojs-contrib-ads.js"></script>
    <script src="/path/to/videojs.ima.js"></script>
    <script src="player.js"></script>
  </body>
</html>
In player.js, load the ads library and set up the IMA plugin: var player =
videojs('content_video'); var options = { adTagUrl: 'YOUR_AD_TAG' };
player.ima(options); // On mobile devices, you must call
initializeAdDisplayContainer as the result // of a user action (e.g. button
click). If you do not make this call, the SDK // will make it for you, but not
as the result of a user action. For more info // see our examples, all of which
are set up to work on mobile devices. //
player.ima.initializeAdDisplayContainer();
#####################################
/////IMA DAI SDK for HTML5//////
<html>
  <head>
    <script src="https://cdn.jsdelivr.net/npm/hls.js@latest"></script>
    <script src="dai.js"></script>
    <link rel="stylesheet" href="dai.css" type="text/css" />
  </head>
  <body onLoad="initPlayer()">
    <h2>IMA SDK DAI Demo (HLS.JS)</h2>
    <video id="video"></video>
    <div id="ad-ui"></div>
  </body>
</html>

dai.css #video, #ad-ui { width: 640px; height: 360px; position: absolute; top:
35px; left: 0; } #ad-ui { cursor: pointer; } dai.js var BACKUP_STREAM =
'https://storage.googleapis.com/interactive-media-ads/media/bbb.m3u8' // Live
stream asset key. var TEST_ASSET_KEY = "sN_IYUG8STe1ZzhIIE_ksA"; // VOD content
source and video IDs. var TEST_CONTENT_SOURCE_ID = "2528370"; var TEST_VIDEO_ID
= "tears-of-steel"; var hls = new Hls(); // hls.js video player var
videoElement; var adUiElement; var isAdBreak; function initPlayer() {
videoElement = document.getElementById('video'); adUiElement =
document.getElementById('adUi'); }