Custom $wp_query loop to show 3 posts from 3 different post types using only 1 query

multiple-post-query.php

<?php 

$args = array(
	'post_type' => array( 'type1', 'type2', 'type3' ),
	'posts_per_page' => -1
	);
	
$myquery = new WP_Query( $args );
	$type1 = 0; $type2 = 0; $type3 = 0; $count = 0;
	while ( $myquery->have_posts() ) : $myquery->the_post();
			
	if ( $post->post_type == 'type1' ) $type1++; 
	if ( $post->post_type == 'type1' && $type1 > 3 ) continue;
			
	if ( $post->post_type == 'type2' ) $type2++; 
	if ( $post->post_type == 'type2' && $type2 > 3 ) continue;
			
	if ( $post->post_type == 'type3' ) $type3++; 
	if ( $post->post_type == 'type3' && $type3 > 3 ) continue;
			
	$count++; if ( $count > 9 ) continue;
			
	// Do Stuff
			
	endwhile;
			
?>