Homepage Previews

Hello,

I have build a website with Serene that only links to five posts. Each single post has been formatted but the homepage that shows a preview of all six posts completely ignores the formatting and cuts off the text with a link (“read more”) at a random point.

I am new to WordPress and don’t know PHP. I would like to either find a way of formatting the previews too or set my first post as a homepage and have that page showing previews of all posts never show up.

This is what the index.php looks like:

<?php
/**
 * @package Serene
 * @since Serene 1.0
 */

get_header();

if ( have_posts() ) : ?>

<div id="main-content">

<?php
	while ( have_posts() ) : the_post();
		get_template_part( 'content', get_post_format() );
	endwhile; ?>

</div> <!-- #main-content -->

<?php
	get_template_part( 'includes/navigation', 'index' );
else:
	get_template_part( 'includes/no-results', 'index' );
endif;

get_footer(); ?>

I understand that I can delete the middle part. What do I insert instead of xyz to show a specific post? Help much apprechiated!

<?php
/**
 * @package Serene
 * @since Serene 1.0
 */

get_header();

xyz

get_footer(); ?>