Hello @brookeserpas923,
Welcome to the Community Forums. Being able to view your detailed usage is a great feature, and I would be happy to assist you with this.
We have a great article about viewing your bill online. You can view your past bills which will include data, voice and text usage. Just a note, if anyone on the account uses iPhone it will not show the messages sent in the text usage section.
Let us know if you have any further questions or concerns. I hope you have a marvelous rest of your day!
Jessica, AT&T Community Specialist