Basic PHP help needed

Hi I have a question and I hope someone can help me.
I use the twenty seventeen theme and I want to edit the comments. I managed to achieve what I wanted however a small bit of the php does not feel right. I do not know php and even though it works fine now, I want to do it the proper way. This is the part I’m talking about:

<?php
	endif; 
?>

I tried several ways but this is the only way I got it to function properly
Is there anyone that can tell me how to write this in a prober way?
This is the original code:

	endif; // Check for have_comments().

	// If comments are closed and there are comments, let's leave a little note, shall we?
	if ( ! comments_open() && get_comments_number() && post_type_supports( get_post_type(), 'comments' ) ) : ?>

		<p class="no-comments"><?php _e( 'Comments are closed.', 'twentyseventeen' ); ?></p>
	<?php
	endif;

	comment_form();
	?>

</div><!-- #comments -->

And this is the the code how it’s now (after I edited).

	endif; // Check for have_comments().
// If comments are closed and there are comments, let's leave a little note, shall we?
	if ( ! comments_open() && get_comments_number() && post_type_supports( get_post_type(), 'comments' ) ) : ?>

		<p class="no-comments"><?php _e( 'Comments are closed.', 'twentyseventeen' ); ?></p>
	<?php
	endif; 
?>
		<div class="hidecform"> 
		<input type="checkbox" id="toggle">
		<label for="toggle" class="toggle" onclick=""></label>  

<?php comment_form(); ?></div>

</div><!-- #comments -->

Thanks for taking the time to read and I really appreciate your help