1. Install and Activate Query Monitor Plugin
2. Copy and paste the following code in the functions.php of your current theme to include Query Monitor in your frontend dashboard.

//Query Monitor Enqueue
// Include your css style
function custom_wpcfe_registered_styles( $styles ){
  // custom-styles - is your enqueued style handle
  $styles[] = 'query-monitor';
  return $styles;
}
add_filter( 'wpcfe_registered_styles', 'custom_wpcfe_registered_styles', 99 );

// Include your script
function custom_wpcfe_registered_scripts( $scripts ){
  // custom-scripts - is your enqueued script handle
  $scripts[] = 'query-monitor';
  return $scripts;
}
add_filter( 'wpcfe_registered_scripts', 'custom_wpcfe_registered_scripts', 99 );