Frontend Submission --> Custom Title and Slug from Fields

Hi there,

I am very much out of my depth with MetaBox and PHP in general.

The use case:
I have a front-end submission form I would like to extract two fields from to use as the Post Title and the Post Slug (I believe that's post_name).

I am able to get the Post Title updated, but not the slug. I have tried piecing together things I've found in the forum, but all of the variations I have tried have not worked.

This is what I have so far:

add_action( 'rwmb_frontend_after_save_post', 'update_bio_post_title');
function update_bio_post_title( $object ) {
	
	if ( 'bio' == $post_type ){
    $post_type = $object->post_type;
    $post_id = $object->post_id;
    // Get the field value
    $my_meta = rwmb_meta( 'counselor_full_name', '', $post_id );

    // Get the post title
    $my_post_title = get_the_title( $post_id );
    
    // Preprare update post
    $post_slug = sanitize_title_with_dashes ($my_post_title,'','save');
    $post_slugsan = sanitize_title($post_slug);
    
    $my_post_title = array(
        'ID' => $post_id,
        'post_title' => $my_meta,
	'post_name' => $post_slugsan,
    );

    wp_update_post( $my_post_title );}
}
?>

The Field ID for field I would like to use for the Post Title is:
counselor_full_name

The slug I would like to take the name and simply add dashes, like you would get when creating a Title natively with spaces. For example: Counselor_Full_Name = Matthew Johnson --> matthew-johnson

Other relevant information:
The Post Type = bio
The Field Group ID for the custom fields = counselor-bio

Also, I'm not sure if this really applies in my case, but I saw a similar post I tried replicating which had an if condition, such that the post slug would only be rewritten for the specific post type. I would like to prevent this function from overriding any other custom post types I might have. I was unable to seemingly get that to work, but I feel like I have bigger issues at the moment before solving that mystery.

If you can kindly provide the code for where I went wrong based on the above, it would be GREATLY appreciated!