How to see featured image INSIDE the post

if your theme does not do this already, add the_post_thumbnail() into the loop of single.php;
https://developer.www.ads-software.com/reference/functions/the_post_thumbnail/

details depend on your currently used theme;
https://codex.www.ads-software.com/Forum_Welcome#Include_as_Much_Information_as_Possible

Thanks for the reply!

Is there any plugin that you would recommend since I’m not very familiar with adding code?

Search your WordPress plug in sections in dashboard for post thumbnail

I did, but could not find any that works this way.

<?php the_post_thumbnail( ‘full’ ); ?>

Add this in your single.php, wherever you would like the image to show. Above the content and under the title would be the best place in think

I cannot get it to show above the title and under the content.
This is the code of my single.php

get_header(); ?>

	<div class="container">
		<div class="row">
			<div id="primary" <?php bavotasan_primary_attr(); ?>>
				<?php while ( have_posts() ) : the_post(); ?>

					<?php get_template_part( 'content', get_post_format() ); ?>

					<div id="posts-pagination" class="clearfix">
						<h3 class="sr-only"><?php _e( 'Post navigation', 'arcade' ); ?></h3>
						<div class="previous pull-left"><?php previous_post_link( '%link', __( '&larr; %title', 'arcade' ) ); ?></div>
						<div class="next pull-right"><?php next_post_link( '%link', __( '%title &rarr;', 'arcade' ) ); ?></div>
					</div><!-- #posts-pagination -->

					<?php comments_template( '', true ); ?>

				<?php endwhile; // end of the loop. ?>
			</div>
			<?php get_sidebar(); ?>
		</div>
	</div>

<?php get_footer(); ?>

Any help guys?