Try using child theme. Create a custom template and try the following code.

<?php
/*
  Template Name: template name
 */
?>
<?php get_header();
        $recent = new WP_Query("category_name="categoryname"&posts_per_page=5"); 
        while($recent->have_posts()):$recent->the_post();?>

        <?php the_content(); 

        endwhile;


 get_footer();
 ?>