I wonder if I have successfully booked the air ticket.

You booked an e-ticket. You can change your boarding pass and register with your ID card.

Your condition is normal. When you arrive at the airport, just change your ID card into a registration card, and then go through the security check with your boarding pass, and you can board the plane!

If you are not at ease, just call China Civil Aviation and ask if your ticket is successful. They will tell you. Generally no problem. They just need to send you a message.

The e-ticket number is just a code of your e-ticket, which has no effect on boarding. If you want to change your flight, you need to change your ticket, which may be useful!