6 guaranteed steps how to create CRON JOB FUNTION in wordpress

Create Cron Job function in Wordpress plugin
Step 1: Register function on plugin activate 
register_activation_hook(__FILE__, 'activate_one');

Step 2: add_filter function for interval
//Filter for Adding multiple intervals
add_filter( 'cron_schedules', 'intervals_schedule' );

// define interval function
 function intervals_schedule($schedules) {
  $schedules['everyminute'] = array(
   'interval' => 60, // Every 1 minutes
   'display'  => __( 'Every 1 minutes' )
  );
  return $schedules;
 }

Step 3: Activate hook function
 //Schedule a first action if it's not already scheduled
 function activate_one() {
  if (!wp_next_scheduled('wpyog_cron_action')) {
   wp_schedule_event( time(), 'everyminute', 'wpyog_cron_action');
  }
 }

Step 4: Cron hook function

  //Hook into that action that'll fire after 1 minutes
  add_action('wpyog_cron_action', 'execute_one');

 function execute_one()
 {
  global $wpdb; 
  $to = "psudhir20@gmail.com";
  $subject = "Wordpress Cron Test";
  $body = "This cron is runing after each 30 minutes \n\n";
  $body .= "Player Name = Sudhir\n";
  $body .= "Injury Status = Fit\n";
  $body .= "Description = Available\n";
  $headers = array(
   'Reply-To' => " Sudhir <er.sudhir2487@gmail.com>"
  );
  wp_mail($to, $subject, $body,$headers); 
 }
Step 5: Stop cron after deactivation
 register_deactivation_hook(__FILE__, 'my_deactivation');

 function my_deactivation() {
  wp_clear_scheduled_hook('wpyog_cron_action');
 }
/** End Cron Job */

Step 6: Set in config file
define('ALTERNATE_WP_CRON', true);