Not refreshing content pagination on search result

Changed architecture and code a while.
Simplified example:

normal form, for example with search keyword inside some templete.

<form method="get" id="search_form" action="/results">
 <input type="text" name="search_text" id="search_text_input" placeholder="Type something for search">
 <button type="submit">GO</button>
</form>

After that i create results.php
Here is code:

 <?php /* Template name: Custom Search */ 
  get_header(); 
 ?>
 <?php 
  if($_GET['search_text'] && !empty($_GET['search_text']) ) 
   {
    $text = $_GET['search_text'];
   }
  ?>
<div class="wrap" style="color:white;">
    <div id="primary" class="content-area">
        <main id="main" class="site-main" role="main">
        <?php
            $big = 999999999; 
            $paged = get_query_var('paged') ? get_query_var('paged') : 1;
            $args = array(
                's' => $text,
                'posts_per_page' => 2,
                'paged' => $paged,
            );
            $my_query = new WP_Query($args);
        ?>
            <?php if ($my_query->have_posts()): ?>
            <?php while($my_query -> have_posts()) : $my_query -> the_post(); ?>
            <div class="post">
                <h2><?php the_title(); ?></h2>
            </div>
        <?php endwhile;
            echo paginate_links( array(
                            'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
                            'format' => '?paged=%#%',
                            'current' => max( 1, get_query_var('paged') ),
                            'total' => $my_query->max_num_pages
                            ) );
            wp_reset_postdata();
        ?>
    <?php else: ?>
        <p>Nothing to show u, human.</p>
    <?php endif; ?>

        </main>
    </div>
</div>

<?php get_footer();?>

After form i create new page in admin dashboard, called “Search results” with “results” slug with template “Advanced Search” from previously created results.php. And that`s all. More custom field can be easily added, and if needed to someone i can post way to do this here.