wpDiscuz to a custom made theme

I believe it has something to do with the codes I have on my theme that I made. I checked and wpDiscuz css and other things don't even go in to my head tag. How do I make wpDiscuz to work on my theme?

I have a comments.php using almost the same one as twentyseventeen. Am i missing something that makes wpDiscuz not work?

my single.php looks like this:

<?php get_header(); ?> 
<?php if (have_posts()) : while (have_posts()) : the_post(); ?> 
<div class="stitle">
<div class="newsport" style="background-image:url(<?php echo get_the_post_thumbnail_url($post->ID, 'medium'); ?>)"></div> 
<h1><?php the_title(); ?></h1> 
</div> 
<div class="thecontent wrap"> <?php echo get_the_date(); ?> <p><?php the_content(); ?></p> </div> 
<div class="wrap"> <?php if ( comments_open() || get_comments_number() ) :
comments_template();
endif;?> </div> 
<?php endwhile; ?> 
<?php endif; ?>