Hey Glindsey155,
We'd recommend reviewing the information in this article as it provides steps to help resolve issues sending messages and problems with group messages: If you can't send or receive messages on your iPhone or iPad
"If you have issues with a group message
If you’re in a group message and stop receiving messages, check to see if you left the conversation. Open Messages and tap the group message. If you see a message that says you left the conversation, then either you left the conversation or you were removed from the group message. You can rejoin a group message only if someone in the group adds you.
To start a new group message:
- Open Messages and tap the Compose button
. - Enter the phone numbers or email addresses of your contacts.
- Type your message, then tap the Send button
.
If you have other issues with a group message, you might need to delete the conversation and start a new one. To delete a group message:
- Open Messages and find the conversation that you want to delete.
- Swipe left over the conversation.
- Tap Delete.
In iOS 16, iPadOS 16.1, and later, you can recover a message if you deleted it within the last 30 to 40 days."
Thanks!