iPhone 7;is saying iPhone is disabled connect to iTunes I have no computer

You will need to restore the device using a computer. The process will erase the device. Later you can restore your data from a recent back-up. Instructions here…

If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

Perhaps a friend with a computer can help you. If not, you can make an appointment at the nearest Apple Store for assistance.

How to get iPhone disable connect to tunes off I have no computer

If you do not have a friend with a computer who will help, you will need to go to the nearest apple Store for assistance. You cannot restore the phone without a computer.