I have worked custom payment and I've received the response from the payment I need to load the success page from my custom controller how can i do it. Whether I need to create own page or can I use core function to load success page in my custom controller is that possible please help me

  

    public function execute()
    {

    	$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
		$order = $objectManager->create('\Magento\Sales\Model\Order') ->loadByIncrementId($orderId);
		$orderState = Order::STATE_PROCESSING;
		$order->setState($orderState)->setStatus(Order::STATE_PROCESSING);
		$order->save();
    }