How can I send a message for a group and make the messages by me only

No problem, bushra254! 😊

The closest your iPhone can come to doing what you’re describing is by sending a SMS Group Message. By sending a SMS Group Message, you can send a message to a group of people, but they will all receive the message as if you texted them from outside of a group. They will not know they are in a group message. Unless they know, of course.

Only you can see the group you created, and only you can use it to send text messages to the group. More info can be found below:

Group SMS

These messages also appear in green text bubbles and go through your carrier. Group SMS messages don’t support multimedia attachments, like photos or videos. All responses in a group SMS are sent as individual text messages and the recipients can’t see the other responses from the group.

Apple provides these instructions:

Send a group text message

1. Open Messages and tap the Compose button .
2. Enter the names or tap the Add button  to add people from your contacts.
3. Type your message, then tap the Send button .

To send a group MMS message on an iPhone, make sure MMS Messaging is turned on. Go to Settings > Messages and turn on MMS Messaging. If you don’t see an option to turn on MMS Messaging or Group Messaging, contact your carrier to see if your plan supports Group MMS Messaging.

With iOS 15 and iPadOS 15, photos, links, and other content that are sent within the group message will appear in the Shared with You section of the corresponding content apps. If you don't want to see the photos and other content in Shared with You, go to the group message, tap the top of the thread, then turn off Show in Shared with You.

Hello bushra254!

What do you mean by, “make the messages by me only?” If you send them, they are by you, aren’t they?

Also, if you further describe in what context you’re trying to send the messages, we may be able to provide more accurate assistance.

Looking forward to your reply!