Not displaying posts that are in the past. ACF date > date

You seem to be missing the meta_query proprety and looking at your code you seem to have two meta values mixed, so we need to combine them.

$loop = new WP_Query([
    'category_name'  => 'gold',
    'orderby'        => 'rand',
    'posts_per_page' => -1,
    'meta_query' => [
        'relation' => 'and',
        [
            'key'   => 'status',
            'value' => 'active'
        ],
        [
            'key'     => 'end_date',
            'value'   => date('Y-m-d'),
            'compare' => '>=',
            'type'    => 'DATE'
        ]
    ]
]);

Also date('y-m-d') return the current date (if we go by the date this answer was creates it will return 21-10-14), that is not a valid date format you this compare will not work.
Even if it was are looking for posts that are equal or older then the current date, which, I assume is not correct (I cound be wrong so feel free to correct me on that =]).

You need to make sure that you have stored a valide date format in that meta field, needs to be date('Y-m-d') instead of date('y-m-d'), notice the upper case Y.