Do you want to Multiple Custome Post of your Website ? you told that you have already created one custom post of your website. Don't worry about it. Now I will help you for your problem
First, make an another custom posts on your and paste function.php or custom-posts.php file. Now I will create custom post Movie Types . you can just change it Movie replaces it your custom post type name.
function custom_post_type() {
// Set UI labels for Custom Post Type
$labels = array(
'name' => _x( 'Movies', 'Post Type General Name' ),
'singular_name' => _x( 'Movie', 'Post Type Singular Name'),
'menu_name' => __( 'Movies'),
'parent_item_colon' => __( 'Parent Movie' ),
'all_items' => __( 'All Movies'),
'view_item' => __( 'View Movie'),
'add_new_item' => __( 'Add New Movie'),
'add_new' => __( 'Add New' ),
'edit_item' => __( 'Edit Movie' ),
'update_item' => __( 'Update Movie' ),
'search_items' => __( 'Search Movie'),
'not_found' => __( 'Not Found' ),
'not_found_in_trash' => __( 'Not found in Trash'),
);
// Set other options for Custom Post Type
$args = array(
'label' => __( 'movies' ),
'description' => __( 'Movie news and reviews' ),
'labels' => $labels,
'supports' => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'revisions', 'custom-fields', ),
'hierarchical' => false,
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'show_in_nav_menus' => true,
'show_in_admin_bar' => true,
'menu_position' => 5,
'can_export' => true,
'has_archive' => true,
'exclude_from_search' => false,
'publicly_queryable' => true,
'capability_type' => 'page',
// This is where we add taxonomies to our CPT
'taxonomies' => array( 'category' ),
);
// Registering your Custom Post Type
register_post_type( 'movies', $args );
}
add_action( 'init', 'custom_post_type', 0 );
Displaying Multiple Post Types
<?php
$args = array( 'post_type' => 'movies', 'posts_per_page' => 10 );
$the_query = new WP_Query( $args );
?>
<?php if ( $the_query->have_posts() ) : ?>
<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<h2><?php the_title(); ?></h2>
<div class="entry-content">
<?php the_content(); ?>
</div>
<?php wp_reset_postdata(); ?>
<?php else: ?>
<p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
<?php endif; ?>
has_archive
to true and flushed your permalinks