Cannot get Jquery to work with wordpress

I don’t think you have to register jquery. I just put this in my functions.php:

function my_scripts_method() {
wp_enqueue_script(
    'main',
    get_template_directory_uri() . '/js/main.js',
    array( 'jquery' )
);
}

add_action( 'wp_enqueue_scripts', 'my_scripts_method' );

It includes my custom scripts that are reliant on jquery.