How to sync all my devices with my apple iPad

You need to activate Apple iCloud services across all of your iOS devixes and Mac computers.

When you do tbis, any time you delete or add something off of one device, it will get added/deleted off of all your other sync'd iOS devices and Mac computers.

All iOS devices and Mac computers must be on the same Apple ID account.

iCloud - Apple

Set up iCloud on your iPhone, iPad, or iPod touch - Apple Support

Set up and use iCloud for Windows - Apple Support

Set up and use iCloud Photos - Apple Support

Upgrade your iCloud storage plan - Apple Support

Manage your iCloud storage - Apple Support

Best of Luck to You!