Customize header

Hello,
I’m trying to customize hezder by adding a secondary menu.
I’ve created a child theme.
I’ve duplicated header-extensions.php to child-header-extensions.php and copy this file in a library folder.
In my child functions.php :

add_action( ‘init’, ‘remove_parent_attitude_load_files’ );
/**
* Removes parent function attached to hook
*/
function remove_parent_attitude_load_files(){
remove_action( ‘child_attitude_load_file_hook’, ‘attitude_load_files’, 10 );
}

add_action( ‘child_attitude_load_files_hook’, ‘child_attitude_load_filesr’, 10 );
/**
* Add your custom function
*/
function child_attitude_load_filesr() {
/**
	 * attitude_add_files hook
	 *
	 * Adding other addtional files if needed.
	 */
	do_action( 'attitude_add_files' );

	/** Load functions */
	require_once( ATTITUDE_FUNCTIONS_DIR . '/i18n.php' );
	require_once( ATTITUDE_FUNCTIONS_DIR . '/custom-header.php' );
	require_once( ATTITUDE_FUNCTIONS_DIR . '/functions.php' );

	require_once( ATTITUDE_ADMIN_DIR . '/attitude-themeoptions-defaults.php' );
	require_once( ATTITUDE_ADMIN_DIR . '/theme-options.php' );
	require_once( ATTITUDE_ADMIN_DIR . '/attitude-metaboxes.php' );
	require_once( ATTITUDE_ADMIN_DIR . '/attitude-show-post-id.php' );

	/** Load Shortcodes */
	require_once( ATTITUDE_SHORTCODES_DIR . '/attitude-shortcodes.php' );

	/** Load Structure */
	require_once( ATTITUDE_STRUCTURE_DIR . '/child_header-extensions.php' );
	require_once( ATTITUDE_STRUCTURE_DIR . '/searchform-extensions.php' );
	require_once( ATTITUDE_STRUCTURE_DIR . '/sidebar-extensions.php' );
	require_once( ATTITUDE_STRUCTURE_DIR . '/footer-extensions.php' );
	require_once( ATTITUDE_STRUCTURE_DIR . '/content-extensions.php' );

	/** Load Widgets and Widgetized Area */
	require_once( ATTITUDE_WIDGETS_DIR . '/attitude_widgets.php' );
}

But it still the header-extensions.php which writes my header.

Please, any help would be appreciated.