How do I display posts ordered by a date custom field?

I figured it out afterwards.
Ended up using a different approach, I’m posting it in case someone has the same issue

 <?php

    date_default_timezone_set('America/Argentina/Buenos_Aires');


    $posts_by_date_field = new WP_Query(array(
        'post_type' => 'post',
        'posts_per_page' => -1,
        'meta_key' => 'fecha',
        'orderby' => 'meta_value',
        'order' => 'ASC',
        'meta_type' => 'DATE'
    ));


    if ($posts_by_date_field->have_posts()) : while ($posts_by_date_field->have_posts()) : $posts_by_date_field->the_post();

            // LOOP

    $today = date("Y-m-d");
    $date = CFS()->get('fecha');

    if ($date >=  $today) :


            $date = new DateTime($date);


            $year = $date->format('Y');
            $month = $date->format('F');

            if ($aux_year != $year) {
                ?>
                <div class="anio"> <?php echo $year; ?> </div>
                <?php
            }

            if ($aux_month != $month) {

                ?>
                <div class="mes"> <?php echo $mes ?> </div>
                <?php
            }
            ?>

            <div class="metaData">

           <p> <?php the_title(); ?></p>

                <p> <?php echo  CFS()->get('fecha'); ?> </p>
                <p> <?php echo CFS()->get('hora'); ?> </p>
                <p> <?php echo CFS()->get('lugar'); ?> </p>
            </div>

            <?php
            $aux_year = $year;
            $aux_month = $month;

             endif;
        endwhile;
    endif;
    ?>