Hi, and welcome!
Did you back the data up before you deleted it?
If you did, just go into the backup app and find the button to restore it.
If you didn't back it up, it is gone. I am sorry. Go to the Playstore right now and download a backup app. MyBackup is a good, free one. Set it to backup on a schedule, and *always* back up before you wipe the data.
You might also want to join forums and find your phone's folder. Then you can talk with other user's of your specific phone and get any help you need. Folks on here are always willing to help.