On your WordPress website you may delete items like posts or pages and those items may go to the trash on there. This may help keep your database smaller on the website. You may want to have the trash automatically empty without using a plugin. You can then add this code to your functions.php file. You may want to backup your WordPress website before you make updates to that on there.
/** * Empty trash automatically * * @author WPSnacks.com * @link https://www.wpsnacks.com */ define('EMPTY_TRASH_DAYS', # );
You can then replace the # with the number of days you want WordPress to wait before it automatically empties the trash on there. Now if that works for you it would automatically empty the trash after the number of days you put on there.