Q: Having trouble with data.

Howdy Bigsissy,

I understand that, when not connected to a Wi-Fi network, you're unable to access the internet or send messages. Symptoms such as this typically indicate that your iPhone's unable to successfully connect to your carrier's cellular network. The article linked below details a number of steps that can help restore your iPhone's ability to send messages and connect to the internet when disconnected from a Wi-Fi network.

If you can‘t connect to a cellular network or cellular data
https://support.apple.com/en-us/HT201415

Regards!