I don’t have a MacBook

You can if you have a Windows computer (PC) or a Mac, either one. Here you go. Restore your iPhone, iPad, or iPod touch from a backup - Apple Support or if you mean restore to factory, Restore your iPhone, iPad, or iPod to factory settings - Apple Support

You can use any computer with iTunes installed. If you don't have one, perhaps a friend might help. If not you can make an appointment at the nearest Apple Store for assistance.

Instructions for restore...

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