iMessages isn't working

iPhone 13 latest OS I message isn’t downloading photos or sending messages. The sent messages say they are not sent but the recipient says they received them.

That's a great question; in order to help since we cannot see your device, you need to post details including make/model/year of your device, iOS version and what happens when you try.

Why is my iMessage is not working

I need to help me do it to work

Help me to do my iMessage to work