Getting custom fields and contents from a single page

I’m encountering weird issues I got a page where it list all the videos so if you click the video you will be redirected into single-page-video where you see the information of the video and custom fields.

I tried to codes this one is I’m not able to echo or get the custom fields.

$postid = get_the_ID();
    $vidtemss = get_post_meta($post_id , 'thai-videos', true );

    if(!empty($vidtemss))
    {
        foreach ($vidtemss as $link) {

  $vidcontent = get_the_content();
           $viddate = get_the_time('F d, Y');

           $vidurl = $link['yt-url'];

        }
    }

But this one I’m able to get the custom fields but the problem is I can’t get the the_content or get_the_content(). the_title is working well.

$vidtemss = get_post_meta($post->ID, 'thai-videos', true );
    if(!empty($vidtemss))
    {
        foreach ($vidtemss as $link) {

  $vidcontent = get_the_content();
           $viddate = get_the_time('F d, Y');

           $vidurl = $link['yt-url'];

        }
    }